Thermal

Definition of Thermal

Ther´mal
a.1.Of or pertaining to heat; warm; hot; as, the thermal unit; thermal waters.
The thermal condition of the earth.
- J. D. Forbes.
2.caused by or affected by heat; as, thermal springs.
3.designed to retain heat; as, thermal underwear.
Thermal conductivity
See under Conductivity, and Spectrum.
Thermal unit
(Physics) a unit chosen for the comparison or calculation of quantities of heat. The unit most commonly employed is the amount of heat necessary to raise the temperature of one gram or one pound of water from zero to one degree Centigrade. See Calorie, and under Unit.

Related Words

aestival, blood-hot, blood-warm, calid, equatorial, fire storm, genial, hot air, luke, lukewarm, mild, room-temperature, subtropical, summery, sunny, sunshiny, superheated air, temperate, tepid, thermic, toasty, tropical, unfrozen, warm, warm as toast, warmish
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