sedative-hypnotic drug

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a sedative that depresses activity of the central nervous system and reduces anxiety and induces sleep
• Syn:
sedative-hypnotic
• Hypernyms:
sedative, sedative drug, depressant, downer
• Hyponyms:
barbiturate, ethchlorvynol, Placidyl, methaqualone, Quaalude,
thalidomide, tranquilizer, tranquillizer, tranquilliser, antianxiety agent, ataractic drug,
ataractic agent, ataractic