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