/ Dictionary / Index E ecofreak: Meaning and Definition of Find definitions for: ec•o•freak Pronunciation: (ek'ō-frēk", ē'kō-), [key] — n. Slang (often disparaging) a zealous or overly zealous environmentalist or preservationist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ecofallow ecohazard Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language