Thermodynamic function. See Heat weight, under Heat.

(Ther`mo*dy*nam"ics) n. The science which treats of the mechanical action or relations of heat.

(Ther`mo*e*lec"tric) a. (Physics) Pertaining to thermoelectricity; as, thermoelectric currents.

(Ther`mo*e`lec*tric"i*ty) n. [Thermo- + electricity: cf. F. thermoélectricité.] (Physics) Electricity developed in the action of heat. See the Note under Electricity.

(Ther`mo*e`lec*trom"e*ter) n. [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.

(Ther"mo*gen) n. [Thermo- + - gen.] (Old Chem.) Caloric; heat; regarded as a material but imponderable substance.

(Ther`mo*gen"ic) a. (Physiol.) Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues.

(Ther*mog"e*nous) a. [Thermo- + -genous.] (Physiol.) Producing heat; thermogenic.

(Ther"mo*graph) n. [Thermo- + - graph.] (Physics) An instrument for automatically recording indications of the variation of temperature.

(Ther*mol"o*gy) n. [Thermo- + -logy.] A discourse on, or an account of, heat. Whewell.

(Ther*mol"y*sis) n. [Thermo- + Gr. ly`ein to loose.] (Chem.) The resolution of a compound into parts by heat; dissociation by heat.

(Ther"mo*lyze) v. t. (Chem.) To subject to thermolysis; to dissociate by heat.

(Ther`mo*mag"net*ism) n. [Thermo- + magnetism.] Magnetism as affected or caused by the action of heat; the relation of heat to magnetism.

(Ther*mom"e*ter) n. [Thermo- + -meter: cf. 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.

Thermochemic to Thick

(Ther`mo*chem"ic Ther`mo*chem"ic*al) a. (Chem. Physics) Of or pertaining to thermochemistry; obtained by, or employed in, thermochemistry.

(Ther`mo*chem"is*try) n. [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.

(Ther*moch"ro*sy) n. [Thermo- + Gr. 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.

(Ther"mo*cur`rent) n. [Thermo- + current.] (Physics) A current, as of electricity, developed, or set in motion, by the action of heat.

(Ther`mo*dy*nam"ic) a. [Thermo- + dynamic.] (Physics) Relating to thermodynamics; caused or operated by force due to the application of heat.

  By PanEris using Melati.

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