/ Dictionary / Index C crotonic acid: Meaning and Definition of Find definitions for: cro•ton'ic ac'id Pronunciation: (krō-ton'ik, -tō'nik), [key] — Chem. Chem. a colorless, crystalline, water-soluble solid, CHO, used chiefly in organic synthesis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. crotonbug croton oil 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