/ Dictionary / Index O Oldowan: Meaning and Definition of Find definitions for: Ol•do•wan Pronunciation: (ōl'du-wun, ôl'-), [key] — adj. Archaeol. of or designating a Lower and Middle Pleistocene industrial complex of eastern Africa, characterized by assemblages of stone tools about two million years old that are the oldest well-documented artifacts yet known. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Orchard Beach Old Permic Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language