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Meaning of acetic anhydride

ace'tic anhy'dride

Pronunciation: [key]
— Chem. Chem.
  1. a colorless, pungent liquid, CHO, the anhydride of acetic acid: used chiefly as a reagent and in the production of plastics, film, and fabrics derived from cellulose.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.