/ Dictionary / Index E Eogene: Meaning and Definition of Find definitions for: E•o•gene Pronunciation: (ē'u-jēn"), [key] — adj., n. Geol. (formerly) Paleogene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. EOG eohippus Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language