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heat (hēt) energy that raises the temperature of a body or substance. Heat is associated with molecular motion, and is generated in various ways, including combustion, friction, chemical action, and radiation. The total absence of heat is absolute zero, at which all molecular activity ceases. a rise in temperature. to cause something to increase in temperature. estrus. latent heat
the amount of heat absorbed or given off by a body without changing temperature, as when it undergoes a change of state. prickly heat
miliaria rubra. specific heat
the ratio of the heat capacity of a substance to that of water; it is equivalent to the amount of heat required to raise the
temperature of one gram of the substance by one degree Celsius, since the corresponding value for water is defined as 1.0.
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