/ Dictionary / Index A acetometer: Meaning and Definition of Find definitions for: ac•e•tom•e•ter Pronunciation: (as"i-tom'i-tur), [key] — n. Chem. an instrument for measuring the amount of acetic acid present in a solution. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acetoin acetone Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language