Therewithal (adv.) With that or this; therewith; at the same time.
Therf (a.) Not fermented; unleavened; -- said of bread, loaves, etc.
Theriac (n.) Alt. of Theriaca
Theriaca (n.) An ancient composition esteemed efficacious against the effects of poison; especially, a certain compound of sixty-four drugs, prepared, pulverized, and reduced by means of honey to an electuary; -- called also theriaca Andromachi, and Venice treacle.
Theriaca (n.) Treacle; molasses.
Theriac (a.) Alt. of Theriacal
Theriacal (a.) Of or pertaining to theriac; medicinal.
Therial (a.) Theriac.
Theriodont (n.) One of the Theriodontia. Used also adjectively.
Theriodonta (n. pl.) Same as Theriodontia.
Theriodontia (n. pl.) An extinct order of reptiles found in the Permian and Triassic formations in South Africa. In some respects they resembled carnivorous mammals. Called also Theromorpha.
Theriotomy (n.) Zootomy.
Thermae (n. pl.) Springs or baths of warm or hot water.
Thermal (a.) Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters.
Thermally (adv.) In a thermal manner.
Thermetograph (n.) A self-registering thermometer, especially one that registers the maximum and minimum during long periods.
Thermic (a.) Of or pertaining to heat; due to heat; thermal; as, thermic lines.
Thermidor (n.) The eleventh month of the French republican calendar, -- commencing July 19, and ending August 17. See the Note under Vendemiaire.
Thermifugine (n.) An artificial alkaloid of complex composition, resembling thalline and used as an antipyretic, -- whence its name.
Thermo- () A combining form from Gr. qe`rmh heat, qermo`s hot, warm; as in thermochemistry, thermodynamic.
Thermobarometer (n.) An instrument for determining altitudes by the boiling point of water.
Thermobattery (n.) A thermoelectric battery; a thermopile.
Thermocautery (n.) Cautery by the application of heat.
Thermochemic (a.) Alt. of Thermochemical
Thermochemical (a.) Of or pertaining to thermochemistry; obtained by, or employed in, thermochemistry.
Thermochemistry (n.) That branch of chemical science which includes the investigation of the various relations existing between chemical action and that manifestation of force termed heat, or the determination of the heat evolved by, or employed in, chemical actions.
Thermochrosy (n.) The property possessed by heat of being composed, like light, of rays of different degrees of refrangibility, which are unequal in rate or degree of transmission through diathermic substances.
Thermocurrent (n.) A current, as of electricity, developed, or set in motion, by the action of heat.
Thermodynamic (a.) Relating to thermodynamics; caused or operated by force due to the application of heat.
Thermodynamics (n.) The science which treats of the mechanical action or relations of heat.
Thermoelectric (a.) Pertaining to thermoelectricity; as, thermoelectric currents.
Thermoelectricity (n.) Electricity developed in the action of heat. See the Note under Electricity.
Thermoelectrometer (n.) An instrument for measuring the strength of an electric current in the heat which it produces, or for determining the heat developed by such a current.
Thermogen (n.) Caloric; heat; regarded as a material but imponderable substance.
Thermogenic (a.) Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues.
Thermogenous (a.) Producing heat; thermogenic.
Thermograph (n.) An instrument for automatically recording indications of the variation of temperature.
Thermology (n.) A discourse on, or an account of, heat.
Thermolysis (n.) The resolution of a compound into parts by heat; dissociation by heat.
Thermolyze (v. t.) To subject to thermolysis; to dissociate by heat.
Thermomagnetism (n.) Magnetism as affected or caused by the action of heat; the relation of heat to magnetism.
Thermometer (n.) 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.
Thermometric (a.) Alt. of Thermometrical
Thermometrical (a.) Of or pertaining to a thermometer; as, the thermometrical scale or tube.
Thermometrical (a.) Made, or ascertained, by means of a thermometer; as, thermometrical observations.
Thermometrically (adv.) In a thermometrical manner; by means of a thermometer.
Thermometrograph (n.) An instrument for recording graphically the variations of temperature, or the indications of a thermometer.
Thermometry (n.) The estimation of temperature by the use of a thermometric apparatus.
Thermomultiplier (n.) Same as Thermopile.
Thermopile (n.) An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth, or any two metals having different capacities for the conduction of heat, connected with an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of bars when exposed even to the feeblest degrees of heat.
Thermoscope (n.) 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.
Thermoscopic (a.) Of or pertaining to the thermoscope; made by means of the thermoscope; as, thermoscopic observations.
Thermostat (n.) A self-acting apparatus for regulating temperature by the unequal expansion of different metals, liquids, or gases by heat, as in opening or closing the damper of a stove, or the like, as the heat becomes greater or less than is desired.
Thermostatic (a.) Of or pertaining to the thermostat; made or effected by means of the thermostat.
Thermosystaltic (a.) Influenced in its contraction by heat or cold; -- said of a muscle.
Thermotaxic (a.) Pertaining to, or connected with, the regulation of temperature in the animal body; as, the thermotaxic nervous system.
Thermotension (n.) A process of increasing the strength of wrought iron by heating it to a determinate temperature, and giving to it, while in that state, a mechanical strain or tension in the direction in which the strength is afterward to be exerted.
Thermotic (a.) Alt. of Thermotical
Thermotical (a.) Of or pertaining to heat; produced by heat; as, thermotical phenomena.
Thermotics (n.) The science of heat.
Thermotropic (a.) Manifesting thermotropism.
Thermotropism (n.) The phenomenon of turning towards a source of warmth, seen in the growing parts of some plants.
Thermotype (n.) A picture (as of a slice of wood) obtained by first wetting the object slightly with hydrochloric or dilute sulphuric acid, then taking an impression with a press, and next strongly heating this impression.
Thermotypy (n.) The art or process of obtaining thermotypes.
Thermovoltaic (a.) Of or relating to heat and electricity; especially, relating to thermal effects produced by voltaic action.
Theromorpha (n. pl.) See Theriodonta.
Theropoda (n. pl.) An order of carnivorous dinosaurs in which the feet are less birdlike, and hence more like those of an ordinary quadruped, than in the Ornithopoda. It includes the rapacious genera Megalosaurus, Creosaurus, and their allies.
Thesauri (pl. ) of Thesaurus
Thesaurus (n.) A treasury or storehouse; hence, a repository, especially of knowledge; -- often applied to a comprehensive work, like a dictionary or cyclopedia.
These (pron.) The plural of this. See This.
Thesicle (n.) A little or subordinate thesis; a proposition.
Theses (pl. ) of Thesis
Thesis (n.) A position or proposition which a person advances and offers to maintain, or which is actually maintained by argument.
Thesis (n.) Hence, an essay or dissertation written upon specific or definite theme; especially, an essay presented by a candidate for a diploma or degree.
Thesis (n.) An affirmation, or distinction from a supposition or hypothesis.
Thesis (n.) The accented part of the measure, expressed by the downward beat; -- the opposite of arsis.
Thesis (n.) The depression of the voice in pronouncing the syllables of a word.
Thesis (n.) The part of the foot upon which such a depression falls.
Thesmothete (n.) A lawgiver; a legislator; one of the six junior archons at Athens.
Thespian (a.) Of or pertaining to Thespis; hence, relating to the drama; dramatic; as, the Thespian art.
Thespian (n.) An actor.
Thessalian (a.) Of or pertaining to Thessaly in Greece.
Thessalian (n.) A native or inhabitant of Thessaly.
Thessalonian (a.) Of or pertaining to Thessalonica, a city of Macedonia.
Thessalonian (n.) A native or inhabitant of Thessalonica.
Theta (n.) A letter of the Greek alphabet corresponding to th in English; -- sometimes called the unlucky letter, from being used by the judges on their ballots in passing condemnation on a prisoner, it being the first letter of the Greek qa`natos, death.
Thetical (a.) Laid down; absolute or positive, as a law.
Thetine (n.) Any one of a series of complex basic sulphur compounds analogous to the sulphines.
Theurgic (a.) Alt. of Theurgical
Theurgical (a.) Of or pertaining to theurgy; magical.
Theurgist (n.) One who pretends to, or is addicted to, theurgy.
Theurgy (n.) A divine work; a miracle; hence, magic; sorcery.
Theurgy (n.) A kind of magical science or art developed in Alexandria among the Neoplatonists, and supposed to enable man to influence the will of the gods by means of purification and other sacramental rites.
Theurgy (n.) In later or modern magic, that species of magic in which effects are claimed to be produced by supernatural agency, in distinction from natural magic.
Thew (n.) Manner; custom; habit; form of behavior; qualities of mind; disposition; specifically, good qualities; virtues.
Thew (n.) Muscle or strength; nerve; brawn; sinew.
Thewed (a.) Furnished with thews or muscles; as, a well-thewed limb.
Thewed (a.) Accustomed; mannered.
Thewy (a.) Having strong or large thews or muscles; muscular; sinewy; strong.
They (obj.) The plural of he, she, or it. They is never used adjectively, but always as a pronoun proper, and sometimes refers to persons without an antecedent expressed.