depressant definitions

WordNet (r) 3.0 (2005)

adj
1: capable of depressing physiological or psychological activity or response by a chemical agent [ant: stimulative] n
1: a drug that reduces excitability and calms a person [syn: sedative, sedative drug, depressant, downer]

Merriam Webster's

noun Date: 1876 one that depresses; specifically an agent that reduces a bodily functional activity or an instinctive desire (as appetite) • depressant adjective

Oxford Reference Dictionary

adj. & n. --adj. 1 that depresses. 2 Med. sedative. --n. 1 Med. an agent, esp. a drug, that sedates. 2 an influence that depresses.

Webster's 1913 Dictionary

Depressant De*press"ant, n. (Med.) An agent or remedy which lowers the vital powers.

Moby Thesaurus

Amytal, Amytal pill, Demerol, Dial, Dolophine, H, Luminal, Luminal pill, M, Mickey Finn, Nembutal, Nembutal pill, Seconal, Seconal pill, Sulfonal, Trional, Tuinal, Tuinal pill, alcohol, amobarbital sodium, analgesic, anodyne, barb, barbital, barbiturate, barbiturate pill, barbituric acid, belladonna, black, black stuff, bleak, blue, blue angel, blue devil, blue heaven, blue velvet, bromide, calmative, cheerless, chloral hydrate, codeine, codeine cough syrup, depressing, depressive, depressor, dismal, dispiriting, dolly, downer, dreary, goofball, hard stuff, heroin, hop, horse, hyoscyamine, hypnotic, junk, knockout drops, laudanum, liquor, lotus, meperidine, methadone, morphia, morphine, narcotic, opiate, opium, oppressive, pacifier, pain killer, paraldehyde, pentobarbital, phenobarbital, phenobarbital sodium, purple heart, quietener, rainbow, red, reserpine, scag, scopolamine, secobarbital sodium, sedative, shit, sleep-inducer, sleeper, sleeping draught, sleeping pill, smack, sodium bromide, sodium thiopental, somnifacient, soother, soothing syrup, soporific, tar, thalidomide, tranquilizer, turps, white stuff, yellow, yellow jacket