| thermal spectrum | The part of the invisible spectrum of wave length just longer than that of visible red light. Synonym: thermal spectrum. (05 Mar 2000) |
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| thermal velocity | <radiobiology> Average speed (magnitude of velocity) of a particle at a given temperature (in a Maxwellian velocity distribution). (09 Oct 1997) |
| thermalgesia | High sensibility to heat; pain caused by a slight degree of heat. Synonym: thermoalgesia. Origin: therm-+ G. Algesis, sense of pain (05 Mar 2000) |
| thermalgia | Burning pain. See: causalgia. Origin: therm-+ G. Algos, pain (05 Mar 2000) |
| thermalisation | <radiobiology> Also known as slowing-down, this is the process (generally arising from collisions) by which fast (superthermal) particles give up energy to the plasma and slow down to thermal speeds. (09 Oct 1997) |