/ Dictionary / Index A acetin: Meaning and Definition of Find definitions for: ac•e•tin Pronunciation: (as'i-tin), [key] — n. Chem. a colorless, thick, hygroscopic liquid, CHO: used chiefly in the manufacture of explosives. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acetin (Thesaurus) acetimeter aceto- Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language