sedative-hypnotic sedative drug • sedative-hypnotic drug · · · Info · Definitions · Synonyms · Characters · · sedative-hypnotic · · Text Common · · Latin · · Scripts 17 · · Length 7 · · Syllables Definitions · · · (noun) a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep. Synonyms: sedative-hypnotic drug. · · Noun Definition 1 Synonyms · · · sedative-hypnotic drug · · Synonym 1 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079