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A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid media by conduction, through fluid media by convection, and through empty space by radiation.
(noun)
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The transfer of energy from one body to another as a result of a difference in temperature or a change in phase.
(noun)
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Physics The sensation or perception of such energy as warmth or hotness.
(noun)
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Physics An abnormally high bodily temperature, as from a fever.
(noun)
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The condition of being hot.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.