exothermally

exothermic

[ek-soh-thur-mik]
adjective Chemistry.
noting or pertaining to a chemical change that is accompanied by a liberation of heat (opposed to endothermic ).
Also, exothermal.


Origin:
1880–85; exo- + thermic

exothermically, exothermally, adverb
exothermicity [ek-soh-ther-mis-i-tee] , noun
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World English Dictionary
exothermic or exothermal (ˌɛksəʊˈθɜːmɪk)
 
adj
endothermic Compare exoergic (of a chemical reaction or compound) occurring or formed with the evolution of heat
 
exothermal or exothermal
 
adj
 
exo'thermically or exothermal
 
adv
 
exo'thermally or exothermal
 
adv

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Etymonline
Word Origin & History

exothermic
from Fr. exothermique (1879), from Gk. exo- + therme "heat" (see thermal).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

exothermic ex·o·ther·mic (ěk'sō-thûr'mĭk) or ex·o·ther·mal (-məl)
adj.

  1. Of or relating to a chemical reaction during which heat is released.

  2. Of of relating to the external warmth of the body.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
exothermic   (ěk'sō-thûr'mĭk)  Pronunciation Key 
Relating to a chemical reaction that releases heat. Compare endothermic.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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