acetal acetacetic • acetaldehydase · · · Info · Definitions · Characters · · acetal · · Text Latin · · Script 6 · · Length 3 · · Syllables Definitions · · · (noun) any organic compound formed by adding alcohol molecules to aldehyde molecules. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C t latin small letter t U+0074