/ Dictionary / Index D deacetylate: Meaning and Definition of Find definitions for: de•a•cet•y•late Pronunciation: (dē"u-set'l-āt"), [key] — -lat•ed, -lat•ing. to remove the acetyl group from (an organic compound). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. deaccession deacidify Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language