| thermodilution | Measurement of blood flow based on induction at one point of the circulation of a known change in the intravascular heat content of flowing blood and detection of the resultant change in temperature at a point downstream. (12 Dec 1998) |
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| thermoduric | Resistant to the effects of exposure to high temperature; used especially with reference to microorganisms. Origin: thermo-+ L. Durus, hard, enduring (05 Mar 2000) |
| thermodynamic | <physics> Relating to thermodynamics; caused or operated by force due to the application of heat. Thermodynamic function. See Heat weight, under Heat. Origin: Thermo- + dynamic. Source: Websters Dictionary (01 Mar 1998) |
| thermodynamic equilibrium | <radiobiology> There is a very general result from statistical mechanics which states that, if a system is in thermodynamic equilibrium with another (or several other) system, all processes by which the systems can exchange energy must be exactly balanced by their reverse processes, so that there is no net exchange of energy. For plasma systems in thermodynamic equilibrium, ionisation must be balanced by recombination, Bremsstrahlung by absorption, and so on. When thermodynamic equilibrium exists, the distribution function of particle energies and excited energy levels of the atoms can be obtained from the Maxwell-Boltzmann distribution (which is a function only of the temperature). The Saha equation is a special application of this. (09 Oct 1997) |
| thermodynamic potential | See: free energy. (05 Mar 2000) |
| thermodynamic theory of narcosis | That the interposition of narcotic molecules in nonaqueous cellular phase causes changes that interfere with facilitation of ionic exchange. (05 Mar 2000) |
| thermodynamics | The study of energy and energy flow in closed and open systems. (18 Nov 1997) |
| thermoelectric | <physics> Pertaining to thermoelectricity; as, thermoelectric currents. Source: Websters Dictionary (01 Mar 1998) |
| thermoelectric pile | <physics> 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. Origin: Thermo- + pile a heap. Source: Websters Dictionary (01 Mar 1998) |
| thermoelectricity | <physics> Electricity developed in the action of heat. See the Note under Electricity. Origin: Thermo- + electricity: cf. F. Thermoelectricite. Source: Websters Dictionary (01 Mar 1998) |
| thermoelectrometer | <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. Origin: Thermo- + electrometer. Source: Websters Dictionary (01 Mar 1998) |
| thermoesthesia | The ability to distinguish differences of temperature. Synonym: temperature sense, thermal sense, thermic sense, thermesthesia. Origin: thermo-+ G. Aisthesis, sensation (05 Mar 2000) |
| thermoesthesiometer | An instrument for testing the temperature sense, consisting of a metal disk with thermometer attached, by which the exact temperature of the disk at the time of application may be known. Synonym: thermesthesiometer. Origin: thermo-+ G. Aisthesis, sensation, + metron, measure (05 Mar 2000) |
| thermoexcitory | Stimulating the production of heat. (05 Mar 2000) |
| thermogen | <chemistry> Caloric; heat; regarded as a material but imponderable substance. Origin: Thermo- + -gen. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Thermoreceptor
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| thermocouple |
a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
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| thermodynamics |
the branch of physics concerned with the conversion of different forms of energy
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| thermoelectric |
involving or resulting from thermoelectricity
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| thermoelectricity |
electricity produced by heat (as in a thermocouple)
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| thermograph |
medical instrument that uses an infrared camera to reveal temperature variations on the surface of the body a thermometer that records temperature variations on a graph as a function of time
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| therm | a hydrometer that includes a thermometer |
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| therm | of or relating to thermal hydrometry |
| therm | a junction between two dissimilar metals across which a voltage appears |
| therm | (chemistry, physics, biology) readily changed or destroyed by heat |
| therm | measuring instrument for measuring temperature |
| therm | of or relating to thermometry |
| therm | a thermometer that records temperature variations on a graph as a function of time |
| therm | the measurement of temperature |
| therm | using nuclear weapons based on fusion as distinguished from fission |
| therm | a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium |
| therm | a nuclear fusion reaction taking place at very high temperatures (as in the sun) |
| therm | a nuclear reactor that uses controlled nuclear fusion to generate energy |