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.
2. A voltage source consisting of a number of bimetallic junctions connected to produce a voltage when heated by a flame.
3. A high-temperature, molten-salt primary battery in which the electrolyte is a solid, non-conducting inorganic salt at ambient temperatures.d
When power is required, an internal pyrotechnic heat source is ignited to melt the solid electrolyte which allows electricity to be generated electrochemically for periods from a few seconds to an hour.This process is often used for military applications; such as, missiles, torpedoes, and space missions.
This has been used primarily in the treatment of headaches.2. The monitoring of skin temperature as an index of blood flow changes because of the dilation and constriction of blood vessels, the feedback being displayed to the patient on a video monitor, accompanied by an audible signal.
It is used for stress management and in the treatment of hypertension, migraine, and Raynaud disease (usually a bilateral disease of the blood vessels; especially, of the extremities which might be caused by cold or emotion, accompanied by intermittent pallor, cyanosis, and redness, and generally accompanied by pain).
It is often used in swimming pools and spas.
2. A burn caused by excessive heat or a type of injury to the skin caused by heat, electricity, chemicals, light, radiation, or friction.