/ Dictionary / Index P prehistory: Meaning and Definition of Find definitions for: pre•his•to•ry Pronunciation: (prē-his'tu-rē, -his'trē), [key] — pl. -ries. human history in the period before recorded events, known mainly through archaeological discoveries, study, research, etc.; history of prehistoric humans. a history of the events or incidents leading to a crisis, situation, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prehistory (Thesaurus) prehistoric prehnite Related Content Daily Word Quiz: ephemeral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language