Webster's Dictionary, 1913

Search Webster
Word starts with Word or meaning contains
Thermally adverb In a thermal manner.

Thermantidote noun [ Greek ... heat + English antidote .] A device for circulating and cooling the air, consisting essentially of a kind of roasting fan fitted in a window and incased in wet tatties. [ India]

Will you bring me to book on the mountains, or where the thermantidotes play?
Kipling.

Thermetograph noun [ Greek ... heat + ... measure + -graph .] A self-registering thermometer, especially one that registers the maximum and minimum during long periods. Nichol.

Thermic adjective [ Greek ... heat.] Of or pertaining to heat; due to heat; thermal; as, thermic lines.

Thermic balance . See Bolometer . -- Thermic fever (Medicine) , the condition of fever produced by sunstroke. See Sunstroke . -- Thermic weight . (Mech.) Same as Heat weight , under Heat .

Thermidor noun [ French, from Greek ... warm, hot.] The eleventh month of the French republican calendar, -- commencing July 19, and ending August 17. See the Note under Vendémiaire .

Thermifugine noun [ Greek ... heat + Latin fugere to flee.] (Chemistry) An artificial alkaloid of complex composition, resembling thalline and used as an antipyretic, -- whence its name.

Thermo- A combining form from Greek qe`rmh heat , qermo`s hot , warm ; as in thermo chemistry, thermo dynamic.

Thermoanæsthesia, -anesthesia noun [ New Latin ] (Medicine) Loss of power to distinguish heat or cold by touch.

Thermobarograph noun (Physics) An instrument for recording simultaneously the pressure and temperature of a gas; a combined thermograph and barograph.

Thermobarometer noun [ Thermo- + barometer .] (Physics) An instrument for determining altitudes by the boiling point of water.

Thermobarometer noun A siphon barometer adapted to be used also as a thermometer.

Thermobattery noun [ Thermo- + battery .] A thermoelectric battery; a thermopile.

Thermocautery noun [ Thermo- + cautery .] (Surg.) Cautery by the application of heat.

Paquelin's thermocautery , thermocautery by means of a hollow platinum point, which is kept constantly hot by the passage through it of benzine vapor.

Thermochemic, Thermochemical adjective (Chem. Physics) Of or pertaining to thermochemistry; obtained by, or employed in, thermochemistry.

Thermochemistry noun [ Thermo- + chemistry .] 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.

Thermochroic adjective [ Thermo- + Greek ..., ..., color.] Pert. to or designating heat rays that have undergone selective absorption and are therefore analogous to colored light rays.

Thermochrosy noun [ Thermo- + Greek ... coloring.] (Physics) 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.

Thermocouple noun A thermoelectric couple.

Thermocurrent noun [ Thermo- + current .] (Physics) A current, as of electricity, developed, or set in motion, by the action of heat.

Thermocurrent noun (Physics) A current developed or set in motion by heat; specif., an electric current, in a heterogeneous circuit, due to differences of temperature between the junctions of the substances of which the circuit is composed.

Thermodin noun [ G., from Greek ... heat.] (Pharm.) A white crystalline substance derived from urethane, used in medicine as an antipyretic, etc.

Thermodynamic adjective [ Thermo- + dynamic .] (Physics) Relating to thermodynamics; caused or operated by force due to the application of heat.

Thermodynamic function . See Heat weight , under Heat .

Thermodynamics noun The science which treats of the mechanical action or relations of heat.

Thermoelectric adjective (Physics) Pertaining to thermoelectricity; as, thermoelectric currents.

Thermoelectric couple, pair (Electricity) A union of two conductors, as bars or wires of dissimilar metals joined at their extremities, for producing a thermoelectric current.

Thermoelectricity noun [ Thermo- + electricity : confer French thermoélectricité .] (Physics) Electricity developed in the action of heat. See the Note under Electricity .

Thermoelectrometer noun [ Thermo- + electrometer .] (Physics) 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 noun [ Thermo- + - gen .] (Old Chem.) Caloric; heat; regarded as a material but imponderable substance.

Thermogenic adjective (Physiol.) Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues.

Thermogenous adjective [ Thermo- + -genous .] (Physiol.) Producing heat; thermogenic.

Thermogram noun (Physics) The trace or record made by means of a thermograph.

Thermograph noun [ Thermo- + - graph .] (Physics) An instrument for automatically recording indications of the variation of temperature.

Thermography noun [ Thermo- + -graphy .] Any process of writing involving the use of heat.

Thermojunction noun (Electricity) A junction of two dissimilar conductors used to produce a thermoelectric current, as in one form of pyrometer; a thermocouple.

Thermology (thẽr"mŏl"o*jȳ) noun [ Thermo- + -logy .] A discourse on, or an account of, heat. Whewell.

Thermoluminescence noun (Physics) Luminescence exhibited by a substance on being moderately heated. It is shown esp. by certain substances that have been exposed to the action of light or to the cathode rays. -- -lu`mi*nes"cent adjective

Thermolysis (-ĭ*sĭs) noun [ Thermo- + Greek ly`ein to loose.] (Chemistry) The resolution of a compound into parts by heat; dissociation by heat.

Thermolytic adjective Of or pertaining to thermolysis.

Thermolyze (thẽr"mo*līz) transitive verb (Chemistry) To subject to thermolysis; to dissociate by heat.

Thermomagnetism (-măg"nĕt*ĭz'm) noun [ Thermo- + magnetism .] Magnetism as affected or caused by the action of heat; the relation of heat to magnetism.

Thermometer (thẽr*mŏm"e*tẽr) noun [ Thermo- + -meter : confer F. thermomètre. See Thermal .] (Physics) An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompanied by proportional changes in their volumes or dimensions.

» The thermometer usually consists of a glass tube of capillary bore, terminating in a bulb, and containing mercury or alcohol, which expanding or contracting according to the temperature to which it is exposed, indicates the degree of heat or cold by the amount of space occupied, as shown by the position of the top of the liquid column on a graduated scale. See Centigrade , Fahrenheit , and Réaumur .

To reduce degrees Fahrenheit to degrees Centigrade, substract 32° and multiply by &frac59;; to reduce degrees Centigrade to degrees Fahrenheit, multiply by &frac95; and add 32°.

Air thermometer , Balance thermometer , etc. See under Air , Balance , etc. -- Metallic thermometer , a form of thermometer indicating changes of temperature by the expansion or contraction of rods or strips of metal. -- Register thermometer , or Self-registering thermometer , a thermometer that registers the maximum and minimum of temperature occurring in the interval of time between two consecutive settings of the instrument. A common form contains a bit of steel wire to be pushed before the column and left at the point of maximum temperature, or a slide of enamel, which is drawn back by the liquid, and left within it at the point of minimum temperature.

Thermometric, Thermometrical adjective [ Confer French thermométrique .]
1. Of or pertaining to a thermometer; as, the thermometrical scale or tube.

2. Made, or ascertained, by means of a thermometer; as, thermometrical observations.

Thermometrically adverb In a thermometrical manner; by means of a thermometer.

Thermometrograph noun [ Thermo- + Greek ... measure + -graph .] (Physics) An instrument for recording graphically the variations of temperature, or the indications of a thermometer.

Thermometry noun The estimation of temperature by the use of a thermometric apparatus.

Thermomotor noun A heat engine; a hot-air engine.

Thermomultiplier noun [ Thermo- + multiplier .] Same as Thermopile .

Thermoneurosis noun [ New Latin ] (Medicine) (a) A neurosis caused by exposure to heat. (b) A neurosis causing rise or fall of a body's temperature.

Thermoneutrality noun (Chemistry) Neutrality as regards heat effects.

Thermophilic adjective [ Thermo- + Greek ... loving + -ic .] Heat-loving; -- applied esp. to certain bacteria.