/ Dictionary / Index O overpopulate: Meaning and Definition of Find definitions for: o•ver•pop•u•late Pronunciation: (ō"vur-pop'yu-lāt"), [key] — -lat•ed, -lat•ing. to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overpopulate (Thesaurus) overplus overpotential Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language