sedative drug

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a drug that reduces excitability and calms a person
• Syn:
sedative, depressant, downer
• Derivationally related forms:
down (for: downer), depressant (for: depressant), depress (for: depressant), sedative (for: sedative)
• Hypernyms:
medicine, medication, medicament, medicinal drug, drug of abuse, street drug
• Hyponyms:
chloral hydrate, glutethimide, Doriden, sedative-hypnotic, sedative-hypnotic drug