- noting or pertaining to a chemical change that is accompanied by a liberation of heat (opposed to endothermic).
Origin of exothermic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for exothermicity
Online Etymology Dictionary, © 2010 Douglas Harper
- Of or relating to a chemical reaction during which heat is released.
- Of or relating to the external warmth of the body.
- Relating to a chemical reaction that releases heat. Compare endothermic.
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