9 letter word starting with tri

Words Parts of Speech Meaning/Definition/Similar Words
trialogue noun A discourse or colloquy by three persons.
triandria noun pl. A Linnaean class of plants having three distinct and equal stamens.
triangled adjective Having three angles; triangular.
triatomic adjective Having three atoms; — said of certain elements or radicals., Having a valence of three; trivalent; sometimes, in a specific sense, having three hydroxyl groups, whether acid or basic; thus, glycerin, glyceric acid, and tartronic acid are each triatomic.
tribalism noun The state of existing in tribes; also, tribal feeling; tribal prejudice or exclusiveness; tribal peculiarities or characteristics.
tribunary adjective Of or pertaining to tribunes; as, tribunary powers or authority.
tribunate noun The state or office of a tribune; tribuneship.
tributary adjective Paying tribute to another, either from compulsion, as an acknowledgment of submission, or to secure protection, or for the purpose of purchasing peace., Hence, subject; subordinate; inferior., Paid in tribute., Yielding supplies of any kind; serving to form or make up, a greater object of the same kind, as a part, branch, etc.; contributing; as, the Ohio has many tributary streams, and is itself tributary to the Mississippi., A ruler or state that pays tribute, or a stated sum, to a conquering power, for the purpose of securing peace and protection, or as an acknowledgment of submission, or for the purchase of security., A stream or river flowing into a larger river or into a lake; an affluent.
tributing present participle & vb. noun of Tribute
trichinae plural of Trichina
trichroic adjective Exhibiting trichroism; pleochroic; pleochroism.
trickling present participle & vb. noun of Trickle
trickment noun Decoration.
trickster noun One who tricks; a deceiver; a tricker; a cheat.
triclinic adjective Having, or characterized by, three unequal axes intersecting at oblique angles. See the Note under crystallization.
triclinia plural of Triclinium
tricrotic adjective Of or pertaining to tricrotism; characterized by tricrotism.
tricuspid adjective Having three cusps, or points; tricuspidate; as, a tricuspid molar., Of or pertaining to the tricuspid valves; as, tricuspid obstruction.
tridactyl adjective Alt. of Tridactyle
tridecane noun A hydrocarbon, C13H28, of the methane series, which is a probable ingredient both of crude petroleum and of kerosene, and is produced artificially as a light colorless liquid.
tridented adjective Having three prongs; trident; tridentate; as, a tridented mace.
tridymite noun Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.
triennial adjective Continuing three years; as, triennial parliaments; a triennial reign., Happening, coming about, or appearing once in every three years; as, triennial elections; a triennial catalogue; a triennial visitation., Something which takes place or appears once in three years.
trierarch noun The commander of a trireme., At Athens, one who (singly, or jointly with other citizens) had to fit out a trireme for the public service.
trifacial adjective See Trigeminal.
trifallow verb t. To plow the third time before sowing, as land.
trifloral adjective Alt. of Triflorous
trifolium noun A genus of leguminous herbs with densely spiked flowers and usually trifoliate leaves; trefoil. There are many species, all of which are called clover. See Clover.
triforium noun The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows.
trigamist noun One who has been married three times; also, one who has three husbands or three wives at the same time.
trigamous adjective Having three sorts of flowers in the same head, — male, female, and hermaphrodite, or perfect, flowers.
trigintal noun A trental.
trigonous adjective Same as Trigonal.
trigynian adjective Alt. of Trigynous
trigynous adjective Having three pistils or styles; of or pertaining to the Trigynia.
trihedral adjective Having three sides or faces; thus, a trihedral angle is a solid angle bounded by three plane angles.
trihedron noun A figure having three sides.
trijugate adjective In three pairs; as, a trijugate leaf, or a pinnate leaf with three pairs of leaflets.
trijugous adjective Same as Trijugate.
trikosane noun A hydrocarbon, C23H48, of the methane series, resembling paraffin; — so called because it has twenty-three atoms of carbon in the molecule.
trilinear adjective Of, pertaining to, or included by, three lines; as, trilinear coordinates.
trilithic adjective Pertaining to a trilith.
trilithon noun A monument consisting of three stones; especially, such a monument forming a kind of doorway, as among the ancient Celts.
trilobate adjective Having three lobes.
trilobita noun pl. An extinct order of arthropods comprising the trilobites.
trilobite noun Any one of numerous species of extinct arthropods belonging to the order Trilobita. Trilobites were very common in the Silurian and Devonian periods, but became extinct at the close of the Paleozoic. So named from the three lobes usually seen on each segment.
trimellic adjective Of, pertaining to, or designating, a certain tribasic acid (called also trimellitic acid) metameric with trimesitic acid.
trimerous adjective Having the parts in threes.
trimester noun A term or period of three months.
trimethyl A prefix or combining form (also used adjectively) indicating the presence of three methyl groups.
trimetric adjective Same as Orthorhombic.
trinerved adjective Same as Trinervate.
trinketer noun One who trinkets.
trinketry noun Ornaments of dress; trinkets, collectively.
trinomial noun A quantity consisting of three terms, connected by the sign + or -; as, x + y + z, or ax + 2b – c2., Consisting of three terms; of or pertaining to trinomials; as, a trinomial root.
triobolar adjective Alt. of Triobolary
trioctile noun An aspect of two planets with regard to the earth when they are three octants, or three eighths of a circle, that is, 135 degrees, distant from each other.
tri/cious adjective Having three sorts of flowers on the same or on different plants, some of the flowers being staminate, others pistillate, and others both staminate and pistillate; belonging to the order Tri/cia.
triparted adjective Parted into three piece; having three parts or pieces; — said of the field or of a bearing; as, a cross triparted., Divided nearly to the base into three segments or lobes.
tripmadam noun Same as Prickmadam.
tripodian noun An ancient stringed instrument; — so called because, in form, it resembled the Delphic tripod.
tripoline adjective Of or pertaining to Tripoli or its inhabitants; Tripolitan., Of or pertaining to tripoli, the mineral.
triquetra plural of Triquetrum
trisagion noun An ancient anthem, — usually known by its Latin name tersanctus.See Tersanctus.
trisected imp. & past participle of Trisect, Divided into three parts or segments by incisions extending to the midrib or to the base; — said of leaves.
triserial adjective Alt. of Triseriate
tritheism noun The opinion or doctrine that the Father, Son, and Holy Spirit are three distinct Gods.
tritheist noun One who believes in tritheism.
tritheite noun A tritheist.
tritorium noun Same as Triturium.
triturate verb t. To rub, grind, bruise, or thrash., To rub or grind to a very fine or impalpable powder; to pulverize and comminute thoroughly.
triturium noun A vessel for separating liquids of different densities.
tritylene noun Propylene.
triumphed imp. & past participle of Triumph
triumphal adjective Of or pertaining to triumph; used in a triumph; indicating, or in honor of, a triumph or victory; as, a triumphal crown; a triumphal arch., A token of victory.
triumpher noun One who was honored with a triumph; a victor., One who triumphs or rejoices for victory.
triumviri plural of Triumvir
triumvirs plural of Triumvir
triumviry noun A triumvirate.
triunguli plural of Triungulus
trivalent adjective Having a valence of three; capable of being combined with, substituted for, or compared with, three atoms of hydrogen; — said of triad atoms or radicals; thus, nitrogen is trivalent in ammonia.
trivially adverb In a trivial manner.
triweekly adjective Occurring or appearing three times a week; thriceweekly; as, a triweekly newspaper., Three times a week., A triweekly publication.