/ Dictionary / Index E exergonic: Meaning and Definition of Find definitions for: ex•er•gon•ic Pronunciation: (ek"sur-gon'ik), [key] — adj. Biochem. (of a biochemical reaction) liberating energy. Cf. endergonic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: exergonic (Thesaurus) Exercycle exergue Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language