ethanal ethaldehyde • ethanamide · · · Info · Definitions · Synonyms · Characters · · ethanal · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a colorless volatile water-soluble liquid aldehyde used chiefly in the manufacture of acetic acid and perfumes and drugs. Synonyms: acetaldehyde. · · Noun Definition 1 Synonyms · · · acetaldehyde · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E t latin small letter t U+0074