/ Dictionary / Index E exogenetic: Meaning and Definition of Find definitions for: ex•o•ge•net•ic Pronunciation: (ek"sō-ju-net'ik), [key] — adj. arising from or relating to the surface of the earth (opposed to endogenetic). exogenous (defs. 2–4). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. exogamy exogenous Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language