thermo-, therm-, thermi-, -thermia, -therm, -thermal, -thermic, -thermias, -thermies, -thermous, -thermy
(Greek: heat, heating, heater, hot, warm)
The term heat is employed in ordinary language in different senses. Some scientists distinguish four principal applications of the term:
- Sensation of heat.
- Temperature, or degree of hotness.
- Quantity of thermal energy.
- Radiant heat, or energy of radiation.
Also referred to as peripheral receptors although these include, besides cutaneous receptors, those in the mucosae or lubricating membranes lining an internal surface or an organ; such as, the alimentary (a tubular passage functioning in the digestion and absorption of food and the elimination of food residue, beginning at the mouth) respiratory (breathing), and genitourinary canals (relating to both the reproductive and excretory organs).
2. Freely permeable by radiant heat.
2. A description of a substance or a space that allows the passage of heat; especially, one that is highly conductive to heat.
2. Medical diathermy, in which the tissues are warmed but not sufficiently to change their nature.
3. Surgical diathermy, in which there is sufficient heating to produce a local change such as destruction of tissue or coagulation of bleeding vessels.
4. Local elevation of temperature within the tissues, produced by high frequency current, ultrasonic waves, or microwave radiation.