/ Dictionary / Index O ornithoid: Meaning and Definition of Find definitions for: or•ni•thoid Pronunciation: (ôr'nu-thoid"), [key] — adj. resembling a bird. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ornitho- ornithol. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language