exothermic

or ex·o·ther·mal

[ ek-soh-thur-mik ]
/ ˌɛk soʊˈθɜr mɪk /

adjective Chemistry.

noting or pertaining to a chemical change that is accompanied by a liberation of heat (opposed to endothermic).

Origin of exothermic

First recorded in 1880–85; exo- + thermic

OTHER WORDS FROM exothermic

ex·o·ther·mi·cal·ly, ex·o·ther·mal·ly, adverb ex·o·ther·mic·i·ty [ek-soh-ther-mis-i-tee] /ˌɛk soʊ θərˈmɪs ɪ ti/, noun

British Dictionary definitions for exothermal

exothermic

exothermal

/ (ˌɛksəʊˈθɜːmɪk) /

adjective

(of a chemical reaction or compound) occurring or formed with the evolution of heat Compare endothermic, exoergic

Derived forms of exothermic

exothermically or exothermally, adverb

Medical definitions for exothermal

exothermic
[ ĕk′sō-thûrmĭk ]

adj.

Of or relating to a chemical reaction during which heat is released.
Of or relating to the external warmth of the body.

Scientific definitions for exothermal

exothermic
[ ĕk′sō-thûrmĭk ]

Relating to a chemical reaction that releases heat. Compare endothermic.