/ Dictionary / Index O orangutan: Meaning and Definition of Find definitions for: o•rang•u•tan Pronunciation: (ô-rang'oo-tan", ō-rang'-, u-rang'-), [key] — n. a large, long-armed anthropoid ape, Pongo pygmaeus, of arboreal habits, inhabiting Borneo and Sumatra: an endangered species. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: orangutan (Thesaurus) orangewood orangy Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language