exothermic
Pronunciation: /ˌɛksə(ʊ)ˈθəːmɪk/
Definition of exothermic
adjective
Chemistry- (of a reaction or process) accompanied by the release of heat. The opposite of endothermic (sense 1).
Origin:
late 19th century: from French exothermique
late 19th century: from French exothermique