| 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) |
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| 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) |
| thermogenesis | The production of heat; specifically the physiologic process of heat production in the body. Origin: thermo-+ G. Genesis, production (05 Mar 2000) |
| thermogenetic | Thermogenic 1. Relating to thermogenesis. Synonym: thermogenous. Synonym: calorigenic. (05 Mar 2000) |
| thermogenic | <physiology> Relating to heat, or to the production of heat; producing heat; thermogenous; as, the thermogenic tissues. Source: Websters Dictionary (01 Mar 1998) |
| therm |
of natural gas is an amount of energy equal to 29.3 kWh.
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| therm- |
of natural gas is an amount of energy equal to 29.3 kWh.
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| thermoscope |
A device used by Galileo to measure temperature.
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| thermodynamics |
The science that describes what is possible and what is impossible during energy conversion processes.
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| thermoluminescence |
A chronometric dating method that uses the fact that certain heated objects accumu-late trapped electrons over time, which allows the date when the object was initially heated to be determined.
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| THE | the rational and systematic study of religion and its influences and of the nature of religious truth |
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| THE | a particular system or school of religious beliefs and teachings |
| THE | a visible (but not necessarily material) manifestation of a deity to a human person |
| THE | family of mainly tropical American trees and shrubs similar to those of the Myrsinaceae |
| THE | Greek philosopher who was a student of Aristotle and who succeeded Aristotle as the leader of the Peripatetics (371-287 BC) |
| THE | Swiss physician who introduced treatments of particular illnesses based on his observation and experience |
| THE | a bronchodilator (trade names Elixophyllin and Slo-Bid and Theobid) used to treat asthma and bronchitis and emphysema |
| THE | an idea accepted as a demonstrable truth |
| THE | a proposition deducible from basic postulates |
| THE | concerned primarily with theories or hypotheses rather than practical considerations |
| THE | concerned primarily with theories or hypotheses rather than practical considerations |
| THE | concerned with theories rather than their practical applications |