6 letter word starting with o

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Words Parts of Speech Meaning/Definition/Similar Words
oafish adjective Like an oaf; simple.
oaring present participle & vb. noun of Oar
obduce verb t. To draw over, as a covering.
obduct verb t. To draw over; to cover.
obdure verb t. To harden., Alt. of Obdured
obelus noun A mark [thus /, or Ö ]; — so called as resembling a needle. In old MSS. or editions of the classics, it marks suspected passages or readings.
oberon noun The king of the fairies, and husband of Titania or Queen Mab.
obeyed imp. & past participle of Obey
obeyer noun One who yields obedience.
obfirm verb t. Alt. of Obfirmate
obiter adverb In passing; incidentally; by the way.
object verb t. To set before or against; to bring into opposition; to oppose., To offer in opposition as a criminal charge or by way of accusation or reproach; to adduce as an objection or adverse reason., To make opposition in words or argument; — usually followed by to., That which is put, or which may be regarded as put, in the way of some of the senses; something visible or tangible; as, he observed an object in the distance; all the objects in sight; he touched a strange object in the dark., That which is set, or which may be regarded as set, before the mind so as to be apprehended or known; that of which the mind by any of its activities takes cognizance, whether a thing external in space or a conception formed by the mind itself; as, an object of knowledge, wonder, fear, thought, study, etc., That by which the mind, or any of its activities, is directed; that on which the purpose are fixed as the end of action or effort; that which is sought for; end; aim; motive; final cause., Sight; show; appearance; aspect., A word, phrase, or clause toward which an action is directed, or is considered to be directed; as, the object of a transitive verb., Opposed; presented in opposition; also, exposed.
oblate adjective Flattened or depressed at the poles; as, the earth is an oblate spheroid., Offered up; devoted; consecrated; dedicated; — used chiefly or only in the titles of Roman Catholic orders. See Oblate, n., One of an association of priests or religious women who have offered themselves to the service of the church. There are three such associations of priests, and one of women, called oblates., One of the Oblati.
oblati noun pl. Children dedicated in their early years to the monastic state., A class of persons, especially in the Middle Ages, who offered themselves and their property to a monastery.
oblata plural of Oblatum
oblige verb t. To attach, as by a bond., To constrain by physical, moral, or legal force; to put under obligation to do or forbear something., To bind by some favor rendered; to place under a debt; hence, to do a favor to; to please; to gratify; to accommodate.
oblite adjective Indistinct; slurred over.
oblong adjective Having greater length than breadth, esp. when rectangular., A rectangular figure longer than it is broad; hence, any figure longer than it is broad.
oboist noun A performer on the oboe.
obolus noun A small silver coin of Athens, the sixth part of a drachma, about three cents in value., An ancient weight, the sixth part of a drachm.
oboval adjective Obovate.
obsess verb t. To besiege; to beset.
obsign verb t. To seal; to confirm, as by a seal or stamp.
obtain verb t. To hold; to keep; to possess., To get hold of by effort; to gain possession of; to procure; to acquire, in any way., To become held; to gain or have a firm footing; to be recognized or established; to subsist; to become prevalent or general; to prevail; as, the custom obtains of going to the seashore in summer., To prevail; to succeed.
obtend verb t. To oppose; to hold out in opposition., To offer as the reason of anything; to pretend.
obtest verb t. To call to witness; to invoke as a witness., To beseech; to supplicate; to beg for., To protest.
obtund verb t. To reduce the edge, pungency, or violent action of; to dull; to blunt; to deaden; to quell; as, to obtund the acrimony of the gall.
obtuse superl. Not pointed or acute; blunt; — applied esp. to angles greater than a right angle, or containing more than ninety degrees., Not having acute sensibility or perceptions; dull; stupid; as, obtuse senses., Dull; deadened; as, obtuse sound.
obvert verb t. To turn toward.
occamy noun An alloy imitating gold or silver.
occult adjective Hidden from the eye or the understanding; inviable; secret; concealed; unknown., To eclipse; to hide from sight.
occupy verb t. To take or hold possession of; to hold or keep for use; to possess., To hold, or fill, the dimensions of; to take up the room or space of; to cover or fill; as, the camp occupies five acres of ground., To possess or use the time or capacity of; to engage the service of; to employ; to busy., To do business in; to busy one’s self with., To use; to expend; to make use of., To have sexual intercourse with., To hold possession; to be an occupant., To follow business; to traffic.
ocelli plural of Ocellus
ocelot noun An American feline carnivore (Felis pardalis). It ranges from the Southwestern United States to Patagonia. It is covered with blackish ocellated spots and blotches, which are variously arranged. The ground color varies from reddish gray to tawny yellow.
ochery adjective Ocherous.
ochimy noun See Occamy.
ochrea noun A greave or legging., A kind of sheath formed by two stipules united round a stem.
ochrey adjective See Ochery.
ochymy noun See Occamy.
octane noun Any one of a group of metametric hydrocarcons (C8H18) of the methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.
octant noun The eighth part of a circle; an arc of 45 degrees., The position or aspect of a heavenly body, as the moon or a planet, when half way between conjunction, or opposition, and quadrature, or distant from another body 45 degrees., An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9O¡, but being itself the eighth part of a circle. Cf. Sextant., One of the eight parts into which a space is divided by three coordinate planes.
octave noun The eighth day after a church festival, the festival day being included; also, the week following a church festival., The eighth tone in the scale; the interval between one and eight of the scale, or any interval of equal length; an interval of five tones and two semitones., The whole diatonic scale itself., The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines., A small cask of wine, the eighth part of a pipe., Consisting of eight; eight.
octavo noun A book composed of sheets each of which is folded into eight leaves; hence, indicating more or less definitely a size of book so made; — usually written 8vo or 8¡., Having eight leaves to a sheet; as, an octavo form, book, leaf, size, etc.
octene noun Same as Octylene.
octile noun Same as Octant, 2.
octoic adjective Pertaining to, derived from, or resembling, octane; — used specifically, to designate any one of a group of acids, the most important of which is called caprylic acid.
octoyl noun A hypothetical radical (C8H15O), regarded as the essential residue of octoic acid.
octroi noun A privilege granted by the sovereign authority, as the exclusive right of trade granted to a guild or society; a concession., A tax levied in money or kind at the gate of a French city on articles brought within the walls.
octuor noun See Octet.
ocular adjective Depending on, or perceived by, the eye; received by actual sight; personally seeing or having seen; as, ocular proof., Of or pertaining to the eye; optic., The eyepiece of an optical instrument, as of a telescope or microscope.
oculo- A combining form from L. oculus the eye.
oculus noun An eye; (Bot.) a leaf bud., A round window, usually a small one.
oddity noun The quality or state of being odd; singularity; queerness; peculiarity; as, oddity of dress, manners, and the like., That which is odd; as, a collection of oddities.
odelet noun A little or short ode.
odible adjective Fitted to excite hatred; hateful.
odinic adjective Of or pertaining to Odin.
odious adjective Hateful; deserving or receiving hatred; as, an odious name, system, vice., Causing or provoking hatred, repugnance, or disgust; offensive; disagreeable; repulsive; as, an odious sight; an odious smell.
odized imp. & past participle of Odize
odylic adjective Of or pertaining to odyle; odic; as, odylic force.
oecoid noun The colorless porous framework, or stroma, of red blood corpuscles from which the zooid, or hemoglobin and other substances of the corpuscles, may be dissolved out.
oedema noun A swelling from effusion of watery fluid in the cellular tissue beneath the skin or mucous membrance; dropsy of the subcutaneous cellular tissue.
offcut noun That which is cut off., A portion ofthe printed sheet, in certain sizes of books, that is cut off before folding.
offend verb t. To strike against; to attack; to assail., To displease; to make angry; to affront., To be offensive to; to harm; to pain; to annoy; as, strong light offends the eye; to offend the conscience., To transgress; to violate; to sin against., To oppose or obstruct in duty; to cause to stumble; to cause to sin or to fall.
odfend verb i. To transgress the moral or divine law; to commit a crime; to stumble; to sin., To cause dislike, anger, or vexation; to displease.
office noun That which a person does, either voluntarily or by appointment, for, or with reference to, others; customary duty, or a duty that arises from the relations of man to man; as, kind offices, pious offices., A special duty, trust, charge, or position, conferred by authority and for a public purpose; a position of trust or authority; as, an executive or judical office; a municipal office., A charge or trust, of a sacred nature, conferred by God himself; as, the office of a priest under the old dispensation, and that of the apostles in the new., That which is performed, intended, or assigned to be done, by a particular thing, or that which anything is fitted to perform; a function; — answering to duty in intelligent beings., The place where a particular kind of business or service for others is transacted; a house or apartment in which public officers and others transact business; as, the register’s office; a lawyer’s office., The company or corporation, or persons collectively, whose place of business is in an office; as, I have notified the office., The apartments or outhouses in which the domestics discharge the duties attached to the service of a house, as kitchens, pantries, stables, etc., Any service other than that of ordination and the Mass; any prescribed religious service., To perform, as the duties of an office; to discharge.
offing noun That part of the sea at a good distance from the shore, or where there is deep water and no need of a pilot; also, distance from the shore; as, the ship had ten miles offing; we saw a ship in the offing.
offish adjective Shy or distant in manner.
offlet noun A pipe to let off water.
offset noun In general, that which is set off, from, before, or against, something, A short prostrate shoot, which takes root and produces a tuft of leaves, etc. See Illust. of Houseleek., A sum, account, or value set off against another sum or account, as an equivalent; hence, anything which is given in exchange or retaliation; a set-off., A spur from a range of hills or mountains., A horizontal ledge on the face of a wall, formed by a diminution of its thickness, or by the weathering or upper surface of a part built out from it; — called also set-off., A short distance measured at right angles from a line actually run to some point in an irregular boundary, or to some object., An abrupt bend in an object, as a rod, by which one part is turned aside out of line, but nearly parallel, with the rest; the part thus bent aside., A more or less distinct transfer of a printed page or picture to the opposite page, when the pages are pressed together before the ink is dry or when it is poor., of Offset, To set off; to place over against; to balance; as, to offset one account or charge against another., To form an offset in, as in a wall, rod, pipe, etc., To make an offset.
ogdoad noun A thing made up of eight parts.
ogling present participle & vb. noun of Ogle
ogress noun A female ogre.
ogrism noun The character or manners of an ogre.
oidium noun A genus of minute fungi which form a floccose mass of filaments on decaying fruit, etc. Many forms once referred to this genus are now believed to be temporary conditions of fungi of other genera, among them the vine mildew (Oidium Tuckeri), which has caused much injury to grapes.
oiling present participle & vb. noun of Oil
oilery noun The business, the place of business, or the goods, of a maker of, or dealer in, oils.
oillet noun A small opening or loophole, sometimes circular, used in mediaeval fortifications., A small circular opening, and ring of moldings surrounding it, used in window tracery in Gothic architecture.
oilmen plural of Oilman
oilman noun One who deals in oils; formerly, one who dealt in oils and pickles.
oilnut noun The buffalo nut. See Buffalo nut, under Buffalo.
ointed imp. & past participle of Oint
oldish adjective Somewhat old.
oleate noun A salt of oleic acid. Some oleates, as the oleate of mercury, are used in medicine by way of inunction.
oleone noun An oily liquid, obtained by distillation of calcium oleate, and probably consisting of the ketone of oleic acid.
oleose adjective Alt. of Oleous
oleous adjective Oily.
oliban noun See Olibanum.
oligo- A combining form from Gr. /, few, little, small.
olived adjective Decorated or furnished with olive trees.
oliver noun An olive grove., An olive tree., A small tilt hammer, worked by the foot.
olivil noun A white crystalline substance, obtained from an exudation from the olive, and having a bitter-sweet taste and acid proporties.
olivin noun A complex bitter gum, found on the leaves of the olive tree; — called also olivite.
omagra noun Gout in the shoulder.
omahas noun pl. A tribe of Indians who inhabited the south side of the Missouri River. They are now partly civilized and occupy a reservation in Nebraska.
omasum noun The third division of the stomach of ruminants. See Manyplies, and Illust. under Ruminant.
omelet noun Eggs beaten up with a little flour, etc., and cooked in a frying pan; as, a plain omelet.
omened imp. & past participle of Omen, Attended by, or containing, an omen or omens; as, happy-omened day.
omenta plural of Omentum
omnify verb t. To render universal; to enlarge.
omnium noun The aggregate value of the different stocks in which a loan to government is now usually funded.
onagri plural of Onager
onager noun A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery., A wild ass, especially the koulan.
onagga noun The dauw.
onappo noun A nocturnal South American monkey (Callithrix discolor), noted for its agility; — called also ventriloquist monkey.
on dit They say, or it is said., A flying report; rumor; as, it is a mere on dit.
onethe adverb Scarcely. See Unnethe.
onloft adverb Aloft; above ground.
onrush noun A rushing onward.
onward adjective Moving in a forward direction; tending toward a contemplated or desirable end; forward; as, an onward course, progress, etc., Advanced in a forward direction or toward an end., Toward a point before or in front; forward; progressively; as, to move onward.
onycha noun An ingredient of the Mosaic incense, probably the operculum of some kind of strombus., The precious stone called onyx.
ooecia plural of Ooecium
ooidal adjective Shaped like an egg.
oolite noun A variety of limestone, consisting of small round grains, resembling the roe of a fish. It sometimes constitutes extensive beds, as in the European Jurassic. See the Chart of Geology.
oology noun The science of eggs in relation to their coloring, size, shape, and number.
oolong noun A fragrant variety of black tea having somewhat the flavor of green tea.
oomiac noun Alt. of Oomiak
oomiak noun A long, broad boat used by the Eskimos.
oopack noun Alt. of Oopak
oorial noun A wild, bearded sheep inhabiting the Ladakh mountains. It is reddish brown, with a dark beard from the chin to the chest.
ootype noun The part of the oviduct of certain trematode worms in which the ova are completed and furnished with a shell.
oozing present participle & vb. noun of Ooze
opaque adjective Impervious to the rays of light; not transparent; as, an opaque substance., Obscure; not clear; unintelligible., That which is opaque; opacity.
opelet noun A bright-colored European actinian (Anemonia, / Anthea, sulcata); — so called because it does not retract its tentacles.
opened imp. & past participle of Open
opener noun One who, or that which, opens.
openly adverb In an open manner; publicly; not in private; without secrecy., Without reserve or disguise; plainly; evidently.
ophite adjective Of or pertaining to a serpent., A greenish spotted porphyry, being a diabase whose pyroxene has been altered to uralite; — first found in the Pyreness. So called from the colored spots which give it a mottled appearance., A mamber of a Gnostic serpent-worshiping sect of the second century.
opiate noun Originally, a medicine of a thicker consistence than sirup, prepared with opium., Any medicine that contains opium, and has the quality of inducing sleep or repose; a narcotic., Anything which induces rest or inaction; that which quiets uneasiness., Inducing sleep; somniferous; narcotic; hence, anodyne; causing rest, dullness, or inaction; as, the opiate rod of Hermes., To subject to the influence of an opiate; to put to sleep.
opined imp. & past participle of Opine
opiner noun One who opines.
oppone verb t. To oppose.
oppose noun To place in front of, or over against; to set opposite; to exhibit., To put in opposition, with a view to counterbalance or countervail; to set against; to offer antagonistically., To resist or antagonize by physical means, or by arguments, etc.; to contend against; to confront; to resist; to withstand; as, to oppose the king in battle; to oppose a bill in Congress., To compete with; to strive against; as, to oppose a rival for a prize., To be set opposite., To act adversely or in opposition; — with against or to; as, a servant opposed against the act., To make objection or opposition in controversy.
oppugn verb t. To fight against; to attack; to be in conflict with; to oppose; to resist.
optate verb i. To choose; to wish for; to desire.
optics noun That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision.
optime noun One of those who stand in the second rank of honors, immediately after the wranglers, in the University of Cambridge, England. They are divided into senior and junior optimes.
option noun The power of choosing; the right of choice or election; an alternative., The exercise of the power of choice; choice., A wishing; a wish., A right formerly belonging to an archbishop to select any one dignity or benefice in the gift of a suffragan bishop consecrated or confirmed by him, for bestowal by himself when next vacant; — annulled by Parliament in 1845., A stipulated privilege, given to a party in a time contract, of demanding its fulfillment on any day within a specified limit.
orache noun A genus (Atriplex) of herbs or low shrubs of the Goosefoot family, most of them with a mealy surface.
oracle noun The answer of a god, or some person reputed to be a god, to an inquiry respecting some affair or future event, as the success of an enterprise or battle., Hence: The deity who was supposed to give the answer; also, the place where it was given., The communications, revelations, or messages delivered by God to the prophets; also, the entire sacred Scriptures — usually in the plural., The sanctuary, or Most Holy place in the temple; also, the temple itself., One who communicates a divine command; an angel; a prophet., Any person reputed uncommonly wise; one whose decisions are regarded as of great authority; as, a literary oracle., A wise sentence or decision of great authority., To utter oracles.
orally adverb In an oral manner., By, with, or in, the mouth; as, to receive the sacrament orally.
orange noun The fruit of a tree of the genus Citrus (C. Aurantium). It is usually round, and consists of pulpy carpels, commonly ten in number, inclosed in a leathery rind, which is easily separable, and is reddish yellow when ripe., The tree that bears oranges; the orange tree., The color of an orange; reddish yellow., Of or pertaining to an orange; of the color of an orange; reddish yellow; as, an orange ribbon.
orator noun A public speaker; one who delivers an oration; especially, one distinguished for his skill and power as a public speaker; one who is eloquent., In equity proceedings, one who prays for relief; a petitioner., A plaintiff, or complainant, in a bill in chancery., An officer who is the voice of the university upon all public occasions, who writes, reads, and records all letters of a public nature, presents, with an appropriate address, those persons on whom honorary degrees are to be conferred, and performs other like duties; — called also public orator.
orbing present participle & vb. noun of Orb
orbate adjective Bereaved; fatherless; childless.
orbity noun Orbation.
orcein noun A reddish brown amorphous dyestuff, /, obtained from orcin, and forming the essential coloring matter of cudbear and archil. It is closely related to litmus.
orchal noun See Archil.
orchel noun Archil.
orchid noun Any plant of the order Orchidaceae. See Orchidaceous.
orchil noun See Archil.
orchis noun A genus of endogenous plants growing in the North Temperate zone, and consisting of about eighty species. They are perennial herbs growing from a tuber (beside which is usually found the last year’s tuber also), and are valued for their showy flowers. See Orchidaceous., Any plant of the same family with the orchis; an orchid.
ordain verb t. To set in order; to arrange according to rule; to regulate; to set; to establish., To regulate, or establish, by appointment, decree, or law; to constitute; to decree; to appoint; to institute., To set apart for an office; to appoint., To invest with ministerial or sacerdotal functions; to introduce into the office of the Christian ministry, by the laying on of hands, or other forms; to set apart by the ceremony of ordination.
ordeal noun An ancient form of test to determine guilt or innocence, by appealing to a supernatural decision, — once common in Europe, and still practiced in the East and by savage tribes., Any severe trial, or test; a painful experience., Of or pertaining to trial by ordeal.
ordure noun Dung; excrement; faeces., Defect; imperfection; fault.
oreide noun See Oroide.
orfray noun The osprey.
organy noun See Origan.
orgasm noun Eager or immoderate excitement or action; the state of turgescence of any organ; erethism; esp., the height of venereal excitement in sexual intercourse.
orgeat noun A sirup in which, formerly, a decoction of barley entered, but which is now prepared with an emulsion of almonds, — used to flavor beverages or edibles.
orgeis noun See Organling.
orgies noun pl. A sacrifice accompanied by certain ceremonies in honor of some pagan deity; especially, the ceremonies observed by the Greeks and Romans in the worship of Dionysus, or Bacchus, which were characterized by wild and dissolute revelry., Drunken revelry; a carouse., of Orgy
orgyia noun A genus of bombycid moths whose caterpillars (esp. those of Orgyia leucostigma) are often very injurious to fruit trees and shade trees. The female is wingless. Called also vaporer moth.
orient adjective Rising, as the sun., Eastern; oriental., Bright; lustrous; superior; pure; perfect; pellucid; — used of gems and also figuratively, because the most perfect jewels are found in the East., The part of the horizon where the sun first appears in the morning; the east., The countries of Asia or the East., A pearl of great luster., To define the position of, in relation to the orient or east; hence, to ascertain the bearings of., Fig.: To correct or set right by recurring to first principles; to arrange in order; to orientate.
origan noun Alt. of Origanum
origin noun The first existence or beginning of anything; the birth., That from which anything primarily proceeds; the fountain; the spring; the cause; the occasion., The point of attachment or end of a muscle which is fixed during contraction; — in contradistinction to insertion.
oriole noun Any one of various species of Old World singing birds of the family Oriolidae. They are usually conspicuously colored with yellow and black. The European or golden oriole (Oriolus galbula, or O. oriolus) has a very musical flutelike note., In America, any one of several species of the genus Icterus, belonging to the family Icteridae. See Baltimore oriole, and Orchard oriole, under Orchard.
orison noun A prayer; a supplication.
ormolu noun A variety of brass made to resemble gold by the use of less zinc and more copper in its composition than ordinary brass contains. Its golden color is often heightened by means of lacquer of some sort, or by use of acids. Called also mosaic gold.
ormuzd noun The good principle, or being, of the ancient Persian religion. See Ahriman.
ornate adjective Adorned; decorated; beautiful., Finely finished, as a style of composition., To adorn; to honor.
oroide noun An alloy, chiefly of copper and zinc or tin, resembling gold in color and brilliancy.
orphan noun A child bereaved of both father and mother; sometimes, also, a child who has but one parent living., Bereaved of parents, or (sometimes) of one parent., To cause to become an orphan; to deprive of parents.
orphic adjective Pertaining to Orpheus; Orphean; as, Orphic hymns.
orpine noun A low plant with fleshy leaves (Sedum telephium), having clusters of purple flowers. It is found on dry, sandy places, and on old walls, in England, and has become naturalized in America. Called also stonecrop, and live-forever.
orrach noun See Orach.
orrery noun An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.
orthid noun A brachiopod shell of the genus Orthis, and allied genera, of the family Orthidae.
orthis noun An extinct genus of Brachiopoda, abundant in the Paleozoic rocks.
ortho- A combining form signifying straight, right, upright, correct, regular; as, orthodromy, orthodiagonal, orthodox, orthographic., A combining form (also used adjectively), The one of several acids of the same element (as the phosphoric acids), which actually occurs with the greatest number of hydroxyl groups; as, orthophosphoric acid. Cf. Normal., Connection with, or affinity to, one variety of isomerism, characteristic of the benzene compounds; — contrasted with meta- or para-; as, the ortho position; hence, designating any substance showing such isomerism; as, an ortho compound.
ortive adjective Of or relating to the time or act of rising; eastern; as, the ortive amplitude of a planet.
oryall noun See Oriel.
osages noun pl. A tribe of southern Sioux Indians, now living in the Indian Territory.
osanne noun Hosanna.
oscine adjective Relating to the Oscines.
oscule noun One of the excurrent apertures of sponges.
oscula plural of Osculum
osiery noun An osier bed.
osiris noun One of the principal divinities of Egypt, the brother and husband of Isis. He was figured as a mummy wearing the royal cap of Upper Egypt, and was symbolized by the sacred bull, called Apis. Cf. Serapis.
osmate noun A salt of osmic acid.
osmite noun A salt of osmious acid.
osmium noun A rare metallic element of the platinum group, found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.
osmose noun The tendency in fluids to mix, or become equably diffused, when in contact. It was first observed between fluids of differing densities, and as taking place through a membrane or an intervening porous structure. The more rapid flow from the thinner to the thicker fluid was then called endosmose, and the opposite, slower current, exosmose. Both are, however, results of the same force. Osmose may be regarded as a form of molecular attraction, allied to that of adhesion., The action produced by this tendency.
osmund noun A fern of the genus Osmunda, or flowering fern. The most remarkable species is the osmund royal, or royal fern (Osmunda regalis), which grows in wet or boggy places, and has large bipinnate fronds, often with a panicle of capsules at the top. The rootstock contains much starch, and has been used in stiffening linen.
osprey noun Alt. of Ospray
ospray noun The fishhawk.
ossean noun A fish having a bony skeleton; a teleost.
ossein noun The organic basis of bone tissue; the residue after removal of the mineral matters from bone by dilute acid; in embryonic tissue, the substance in which the mineral salts are deposited to form bone; — called also ostein. Chemically it is the same as collagen.
ossify verb t. To form into bone; to change from a soft animal substance into bone, as by the deposition of lime salts., Fig.: To harden; as, to ossify the heart., To become bone; to change from a soft tissue to a hard bony tissue.
osteal adjective Osseous.
ostein noun Ossein.
ostend verb t. To exhibit; to manifest.
ostent noun Appearance; air; mien., Manifestation; token; portent.
osteo- A combining form of Gr. / a bone.
ostium noun An opening; a passage.
ostler noun See Hostler.
ostmen noun pl. East men; Danish settlers in Ireland, formerly so called.
ostrea noun A genus of bivalve Mollusca which includes the true oysters.
otalgy noun Pain in the ear; otalgia.
othman noun & adjective See Ottoman.
otiose adjective Being at leisure or ease; unemployed; indolent; idle.
otitis noun Inflammation of the ear.
oughne adjective Own.
ounded adjective Alt. of Oundy
ouphen adjective Elfish.
ourang noun The orang-outang.
ourebi noun A small, graceful, and swift African antelope, allied to the klipspringer.
ousted imp. & past participle of Oust
ouster noun A putting out of possession; dispossession; ejection; disseizin.
outact verb t. To do or beyond; to exceed in acting.
outbar verb t. To bar out.
outbeg verb t. To surpass in begging.
outbid imp. of Outbid, of Outbid, To exceed or surpass in bidding.
outbow verb t. To excel in bowing.
outbud verb i. To sprout.
outcry noun A vehement or loud cry; a cry of distress, alarm, opposition, or detestation; clamor., Sale at public auction.
outdid imp. of Outdo
outfit noun A fitting out, or equipment, as of a ship for a voyage, or of a person for an expedition in an unoccupied region or residence in a foreign land; things required for equipment; the expense of, or allowance made for, equipment, as by the government of the United States to a diplomatic agent going abroad.
outfly verb t. To surpass in flying; to fly beyond or faster than.
outher conj. Other.
outing noun The act of going out; an airing; an excursion; as, a summer outing., A feast given by an apprentice when he is out of his time.
outjet noun That which jets out or projects from anything.
outlaw noun A person excluded from the benefit of the law, or deprived of its protection., To deprive of the benefit and protection of law; to declare to be an outlaw; to proscribe., To remove from legal jurisdiction or enforcement; as, to outlaw a debt or claim; to deprive of legal force.
outlay verb t. To lay out; to spread out; to display., A laying out or expending., That which is expended; expenditure., An outlying haunt.
outlet noun The place or opening by which anything is let out; a passage out; an exit; a vent., To let out; to emit.
outlie verb t. To exceed in lying.
output noun The amount of coal or ore put out from one or more mines, or the quantity of material produced by, or turned out from, one or more furnaces or mills, in a given time., That which is thrown out as products of the metabolic activity of the body; the egesta other than the faeces. See Income.
outray verb t. To outshine., To spread out in array.
outran imp. of Outrun
outrun past participle of Outrun, To exceed, or leave behind, in running; to run faster than; to outstrip; to go beyond.
outsee verb t. To see beyond; to excel in cer/ainty of seeing; to surpass in foresight.
outset noun A setting out, starting, or beginning.
outsit verb t. To remain sitting, or in session, longer than, or beyond the time of; to outstay.
outtop verb t. To overtop.
outvie verb t. To exceed in vying.
outway noun A way out; exit.
outwin verb t. To win a way out of.
outwit verb t. To surpass in wisdom, esp. in cunning; to defeat or overreach by superior craft., The faculty of acquiring wisdom by observation and experience, or the wisdom so acquired; — opposed to inwit.
outwoe verb t. To exceed in woe.
ovally adverb In an oval form.
ovaria plural of Ovarium
ovated adjective Ovate.
overdo verb t. To do too much; to exceed what is proper or true in doing; to exaggerate; to carry too far., To overtask. or overtax; to fatigue; to exhaust; as, to overdo one’s strength., To surpass; to excel., To cook too much; as, to overdo the meat., To labor too hard; to do too much.
overgo verb t. To travel over., To exceed; to surpass., To cover., To oppress; to weigh down.
overly adjective Careless; negligent; inattentive; superfical; not thorough., Excessive; too much., In an overly manner.
ovisac noun A Graafian follicle; any sac containing an ovum or ova., The inner layer of the fibrous wall of a Graafian follicle.
ovular adjective Relating or belonging to an ovule; as, an ovular growth.
ovulum noun An ovule.
owelty noun Equality; — sometimes written ovelty and ovealty.
owling present participle & vb. noun of Owl, The offense of transporting wool or sheep out of England contrary to the statute formerly existing.
owlery noun An abode or a haunt of owls.
owlish adjective Resembling, or characteristic of, an owl.
owlism noun Affected wisdom; pompous dullness.
owning present participle & vb. noun of Own
oxacid noun See Oxyacid.
oxalan noun A complex nitrogenous substance C3N3H5O3 obtained from alloxan (or when urea is fused with ethyl oxamate), as a stable white crystalline powder; — called also oxaluramide.
oxalic adjective Pertaining to, derived from, or contained in, sorrel, or oxalis; specifically, designating an acid found in, and characteristic of, oxalis, and also certain plant of the Buckwheat family.
oxalis noun A genus of plants, mostly herbs, with acid-tasting trifoliolate or multifoliolate leaves; — called also wood sorrel.
oxalyl noun A hydrocarbon radical (C2O2) regarded as a residue of oxalic acid and occurring in derivatives of it., An old name for carbonyl., An old name for carboxyl.
oxamic adjective Pertaining to, or designating, an acid NH2.C2O2.HO obtained as a fine crystalline powder, intermediate between oxalic acid and oxamide. Its ammonium salt is obtained by boiling oxamide with ammonia.
oxbane noun A poisonous bulbous plant (Buphane toxicaria) of the Cape of Good Hope.
oxbird noun The dunlin., The sanderling., An African weaver bird (Textor alector).
oxeyed adjective Having large, full eyes, like those of an ox.
oxford adjective Of or pertaining to the city or university of Oxford, England.
oxgang noun See Bovate.
oxgoad noun A goad for driving oxen.
oxhead noun Literally, the head of an ox (emblem of cuckoldom); hence, a dolt; a blockhead.
oxheal noun Same as Bear’s-foot.
oxhide noun The skin of an ox, or leather made from it., A measure of land. See 3d Hide.
oxlike adjective Characteristic of, or like, an ox.
oxonic adjective Pertaining to, or designating, a complex nitrogenous acid (C4H5N3O4) not known in the free state, but obtained, in combination with its salts, by a slow oxidation of uric acid, to which it is related.
oxshoe noun A shoe for oxen, consisting of a flat piece of iron nailed to the hoof.
oxygen noun A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96., Chlorine used in bleaching.
oxygon noun A triangle having three acute angles.
oxymel noun A mixture of honey, water, vinegar, and spice, boiled to a sirup.
oxyopy noun Excessive acuteness of sight.
oynoun noun Onion.
oyster noun Any marine bivalve mollusk of the genus Ostrea. They are usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, or in brackish water in the mouth of rivers. The common European oyster (Ostrea edulis), and the American oyster (Ostrea Virginiana), are the most important species., A name popularly given to the delicate morsel contained in a small cavity of the bone on each side of the lower part of the back of a fowl.
ozonic adjective Pertaining to, resembling, or containing, ozone.