tranquilizer (n.)

  1. a drug used to reduce stress or tension without reducing mental clarity

    [ Syn: tranquillizer , tranquillizer , tranquilliser , tranquilliser , antianxiety agent , antianxiety agent , ataractic drug , ataractic drug , ataractic agent , ataractic agent , ataractic , ataractic ]

The dictionary is based on the WordNet Electronic Lexical Database.
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