ecofreak: Meaning and Definition of

ec•o•freak

Pronunciation: (ek'ō-frēk", ē'kō-), [key]
— n. Slang (often disparaging)
  1. a zealous or overly zealous environmentalist or preservationist.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.