| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| thallophyte | noun | Same as Thallogen. |
| thamnophile | noun | A bush shrike. |
| thanatology | noun | A description, or the doctrine, of death. |
| thanatopsis | noun | A view of death; a meditation on the subject of death. |
| thanksgiver | noun | One who gives thanks, or acknowledges a kindness. |
| thankworthy | adjective | Deserving thanks; worthy of gratitude; mreitorious. |
| thaumatrope | noun | An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn. |
| thaumaturge | noun | A magician; a wonder worker. |
| thaumaturgy | noun | The act or art of performing something wonderful; magic; legerdemain. |
| theanthropy | noun | Theanthropism. |
| theatricals | noun pl. | Dramatic performances; especially, those produced by amateurs. |
| thecodactyl | noun | Any one of a group of lizards of the Gecko tribe, having the toes broad, and furnished with a groove in which the claws can be concealed. |
| thecodontia | noun pl. | A group of fossil saurians having biconcave vertebrae and the teeth implanted in sockets. |
| thecosomata | noun pl. | An order of Pteropoda comprising those species which have a shell. See Pteropoda. |
| thelphusian | noun | One of a tribe of fresh-water crabs which live in or on the banks of rivers in tropical countries. |
| thelytokous | adjective | Producing females only; — said of certain female insects. |
| thenceforth | adverb | From that time; thereafter. |
| theobromine | noun | An alkaloidal ureide, C7H8N4O2, homologous with and resembling caffeine, produced artificially, and also extracted from cacao and chocolate (from Theobroma Cacao) as a bitter white crystalline substance; — called also dimethyl xanthine. |
| theodolitic | adjective | Of or pertaining to a theodolite; made by means of a theodolite; as, theodolitic observations. |
| theological | adjective | Of or pertaining to theology, or the science of God and of divine things; as, a theological treatise. |
| theologized | imp. & past participle | of Theologize |
| theologizer | noun | One who theologizes; a theologian. |
| theomachist | noun | One who fights against the gods; one who resists God of the divine will. |
| theopneusty | noun | Divine inspiration; the supernatural influence of the Divine Spirit in qualifying men to receive and communicate revealed truth. |
| theorematic | adjective | Alt. of Theorematical |
| theoretical | adjective | Pertaining to theory; depending on, or confined to, theory or speculation; speculative; terminating in theory or speculation: not practical; as, theoretical learning; theoretic sciences. |
| theorically | adverb | In a theoretic manner. |
| theosophism | noun | Belief in theosophy. |
| theosophist | noun | One addicted to theosophy. |
| theosophize | verb i. | To practice theosophy. |
| therapeutae | noun pl. | A name given to certain ascetics said to have anciently dwelt in the neighborhood of Alexandria. They are described in a work attributed to Philo, the genuineness and credibility of which are now much discredited. |
| therapeutic | adjective | Alt. of Therapeutical, One of the Therapeutae. |
| thereabouts | adverb | Near that place., Near that number, degree, or quantity; nearly; as, ten men, or thereabouts., Concerning that; about that. |
| there-anent | adverb | Concerning that. |
| therebefore | adverb | Alt. of Therebiforn |
| therebiforn | adverb | Before that time; beforehand. |
| theretofore | adverb | Up to that time; before then; — correlative with heretofore. |
| therewithal | adverb | Over and above; besides; moreover., With that or this; therewith; at the same time. |
| theriodonta | noun pl. | Same as Theriodontia. |
| thermogenic | adjective | Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues. |
| thermograph | noun | An instrument for automatically recording indications of the variation of temperature. |
| thermolysis | noun | The resolution of a compound into parts by heat; dissociation by heat. |
| thermometer | noun | An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompained by proportional changes in their volumes or dimensions. |
| thermometry | noun | The estimation of temperature by the use of a thermometric apparatus. |
| thermoscope | noun | An instrument for indicating changes of temperature without indicating the degree of heat by which it is affected; especially, an instrument contrived by Count Rumford which, as modified by Professor Leslie, was afterward called the differential thermometer. |
| thermotaxic | adjective | Pertaining to, or connected with, the regulation of temperature in the animal body; as, the thermotaxic nervous system. |
| thermotical | adjective | Of or pertaining to heat; produced by heat; as, thermotical phenomena. |
| theromorpha | noun pl. | See Theriodonta. |
| thesmothete | noun | A lawgiver; a legislator; one of the six junior archons at Athens. |
| thimblefuls | plural | of Thimbleful |
| thimbleweed | noun | Any plant of the composite genus Rudbeckia, coarse herbs somewhat resembling the sunflower; — so called from their conical receptacles. |
| thiocyanate | noun | Same as Sulphocyanate. |
| thiophthene | noun | A double thiophene nucleus, C6H4S2, analogous to thionaphthene, and the base of a large series of compounds. |
| third-penny | noun | A third part of the profits of fines and penalties imposed at the country court, which was among the perquisites enjoyed by the earl. |
| thirstiness | noun | The state of being thirsty; thirst. |
| thitherward | adverb | To ward that place; in that direction. |
| thoracotomy | noun | The operation of opening the pleural cavity by incision. |
| thoroughpin | noun | A disease of the hock (sometimes of the knee) of a horse, caused by inflammation of the synovial membrane and a consequent excessive secretion of the synovial fluid; — probably so called because there is usually an oval swelling on each side of the leg, appearing somewhat as if a pin had been thrust through. |
| thoroughwax | noun | An umbelliferous plant (Bupleurum rotundifolium) with perfoliate leaves., Thoroughwort. |
| thoughtless | adverb | Lacking thought; careless; inconsiderate; rash; as, a thoughtless person, or act., Giddy; gay; dissipated., Deficient in reasoning power; stupid; dull. |
| thrall-less | adjective | Having no thralls., Not enslaved; not subject to bonds. |
| thrall-like | adjective | Resembling a thrall, or his condition, feelings, or the like; slavish. |
| thrasonical | adjective | Of or pertaining to Thraso; like, or becoming to, Thraso; bragging; boastful; vainglorious. |
| threadiness | noun | Quality of being thready. |
| threatening | present participle & vb. noun | of Threaten, a. & n. from Threaten, v. |
| three-lobed | adjective | Having three lobes. |
| three-piled | adjective | Having the quality of three-pile; best; most costly., Fig.: Extravagant; exaggerated; high-flown., Accustomed to wearing three-pile; hence, of high rank, or wealth. |
| three-score | adjective | Thrice twenty; sixty. |
| three-sided | adjective | Having three sides, especially three plane sides; as, a three-sided stem, leaf, petiole, peduncle, scape, or pericarp. |
| threnetical | adjective | Pertaining to a threne; sorrowful; mournful. |
| threpsology | noun | The doctrine of nutrition; a treatise on nutrition. |
| thresh-fold | noun | Threshold. |
| thriftiness | noun | The quality or state of being thrifty; thrift. |
| throatlatch | noun | A strap of a bridle, halter, or the like, passing under a horse’s throat. |
| throw-crook | noun | An instrument used for twisting ropes out of straw. |
| thunderbird | noun | An Australian insectivorous singing bird (Pachycephala gutturalis). The male is conspicuously marked with black and yellow, and has a black crescent on the breast. Called also white-throated thickhead, orange-breasted thrust, black-crowned thrush, guttural thrush, and black-breasted flycatcher. |
| thunderbolt | noun | A shaft of lightning; a brilliant stream of electricity passing from one part of the heavens to another, or from the clouds to the earth., Something resembling lightning in suddenness and effectiveness., Vehement threatening or censure; especially, ecclesiastical denunciation; fulmination., A belemnite, or thunderstone. |
| thunderclap | noun | A sharp burst of thunder; a sudden report of a discharge of atmospheric electricity. |
| thunderfish | noun | A large European loach (Misgurnus fossilis). |
| thunderhead | noun | A rounded mass of cloud, with shining white edges; a cumulus, — often appearing before a thunderstorm. |
| thunderless | adjective | Without thunder or noise. |
| thunderworm | noun | A small, footless, burrowing, snakelike lizard (Rhineura Floridana) allied to Amphisbaena, native of Florida; — so called because it leaves its burrows after a thundershower. |
| thuriferous | adjective | Producing or bearing frankincense. |
| thwartingly | adverb | In a thwarting or obstructing manner; so as to thwart. |
| thyine wood | The fragrant and beautiful wood of a North African tree (Callitris quadrivalvis), formerly called Thuja articulata. The tree is of the Cedar family, and furnishes a balsamic resin called sandarach. | |
| thysanopter | noun | One of the Thysanoptera. |
| thysanurous | adjective | Of or pertaining to the Thysanura. |