/ Dictionary / Index O oriental cockroach: Meaning and Definition of Find definitions for: o'rien'tal cock'roach Pronunciation: [key] a dark-brown cockroach, Blatta orientalis, thought to have originated in the Orient but now nearly cosmopolitan in distribution. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oriental cat's-eye Oriental fruit moth Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language