/ Dictionary / Index C croton oil: Meaning and Definition of Find definitions for: cro'ton oil" Pronunciation: [key] a brownish-yellow oil, expressed from the seeds of the croton, Croton tiglium, that is a drastic purgative and counterirritant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crotonic acid crouch Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language