Meanings
comparative more exothermic · superlative most exothermic
- chemistryThat releases energy in the form of heat.
These can be differentiated on a thermal scan where an endothermic transition indicates enantiotropes and an exothermic transition indicates monotropes.
2014, William J. Brock, Barbara Mounho, Lijie Fu, The Role of the Study Director in Nonclinical Studies, page 174 - chemistryThat releases heat during its formation, and absorbs it during its decomposition.
- biologyOf an animal: whose body temperature is regulated by external factors; cold-blooded.
Synonyms & antonyms
adjective(of a chemical reaction or compound) occurring or formed with the liberation of heat
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Frenchexothermique
- Englishexothermic
From French exothermique, from exo- (“outside”) + thermique (“of heat”), both ultimately from Ancient Greek. By surface analysis, exo- + -thermic.
More words from French
Full word history & related roots →Translations
Catalan exotèrmic
- exotèrmicreleasing heat
Czech exotermický
- exotermickýreleasing heat
Finnish eksoterminen
- eksoterminenreleasing heat
German exotherm
- exothermreleasing heat
Hungarian exoterm
- exotermreleasing heat
Italian esotermico
- esotermicoreleasing heat
Māori putawera
- putawerareleasing heat
Norwegian eksoterm
- eksotermreleasing heat
Persian گرماده
- گرماده (garmâde)releasing heat
Polish egzotermiczny
- egzotermicznyreleasing heat
Portuguese exotérmico
- exotérmicoreleasing heat
Russian экзотерми́ческий
- экзотерми́ческий (ekzotermíčeskij)releasing heat
Swedish exoterm, exotermisk
- exotermreleasing heat
- exotermiskreleasing heat
Tagalog luwas-initin
- luwas-initinreleasing heat
Vietnamese toả nhiệt
- toả nhiệtreleasing heat
Rhymes & wordplay
Anagrams
Cite this entry
exothermic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/exothermic
“exothermic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exothermic. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “exothermic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/exothermic.
Source: exothermic on Wiktionary, CC BY-SA 4.0.