/ Dictionary / Index D dicarboxylic acid: Meaning and Definition of Find definitions for: di•car'box•yl'ic ac'id Pronunciation: (dī-kär'bok-sil'ik, -kär"-), [key] — Chem. Chem. any of the organic compounds that contain two carboxyl groups. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dicalcium silicate dicast Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language