/ Dictionary / Index O oyster cracker: Meaning and Definition of Find definitions for: oys'ter crack"er Pronunciation: [key] a small, round, usually salted cracker, served with oysters, soup, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oyster crab oystered Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language