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:

  1. Sensation of heat.
  2. Temperature, or degree of hotness.
  3. Quantity of thermal energy.
  4. Radiant heat, or energy of radiation.

hypothermal deposit
A hydrothermal mineral deposit formed at great depth (high pressure) and a temperature of 300-500°C.
hypothermesthesia (s) (noun), hypothermesthesias (pl)
An abnormally decreased sensitivity to heat or temperature perception: If Linda experienced hypothermia, the resultant hypothermesthesia would place her at risk of death.
hypothermia
A body temperature significantly less than 98.6°F (37°C).
hypothermic
1. Somewhat warm.
2. Relating to reduction of body heat.
hypothermy
1. A body temperature significantly below 98.6°F (37°C).
2. The condition of having a body temperature substantially below the normal, either as a result of natural causes or artificially induced (e.g. for cardiac surgery).
hypsithermal
Relating to or occurring in a climatic period on earth occurring about 10,00 to 5,000 years ago, characterized by generally warmer temperatures and decreased or increased rainfall in various areas.
hysterothermometry
Measurement of uterine temperature.
inductothermy, inductotherm
Artificially producing fever by means of electromagnetic induction.
isallotherm
A line on a weather chart connecting points of equal change of temperature within a specified time period.
isobathytherm
1. A line connecting the points on the surface of the earth where a certain temperature is found at the same depth.
2. A line or surface showing the depths in oceans or lakes at which points have the same temperature.

Isobathytherms are usually drawn to show cross sections of the water mass.

isobathythermic, isobathythermal
A reference to a line connecting points having the same temperature in a vertical section of any part of the sea (also isothermobath).
isodrosotherm
A line on a weather chart connecting locations having equal dew points.
isogeotherm
A line or surface (usually imaginary) connecting points in the interior of the earth having the same temperature; an isogeothermal line.
isogeothermal, isogeothermic
A descriptive reference to a line or surface (usually imaginary) connecting points in the interior of the earth having the same temperature; an isogeothermal line.
isotherm
1. Having the same temperature.
2. Of, pertaining to, indicating, or corresponding to equal temperatures.
3. Occurring at a constant temperature; pertaining to or involving a constancy of temperature with time.
4. A line connecting points having the same temperature in a vertical section of any part of the sea.
5. A line on a graph showing the relationship between variables, especially pressure and volume, at a constant temperature.

Quiz You can find self-scoring quizzes over many of the words in this subject area by going to this Thermo- Vocabulary Quizzes page.

Related "heat, hot" word units: ferv-; pyreto-.

Related "bubble" word unit: ebulli-.