- The definition of exothermic is a process or chemical reaction characterized by or causing the liberation or release of heat.
Combustion where heat is released is an example of an exothermic reaction.
Origin: exo- plush thermic
Used by arrangement with John Wiley & Sons, Inc.
- exˌo·therˈmi·cal·ly adverb
exothermic - Medical Definition
- Of or relating to a chemical reaction during which heat is released.
- Of or relating to the external warmth of the body.
exothermic - Science Definition
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