Definition of depressant noun from the Oxford Advanced Learner's Dictionary

 

depressant

 noun
noun
BrE BrE//dɪˈpresnt//
 
; NAmE NAmE//dɪˈpresnt//
 
(medical)
 
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a drug which slows the rate of the body’s functions see also antidepressant
See the Oxford Advanced American Dictionary entry: depressant