Found 2 items, similar to tranquillizer.
English → English (WordNet) Definition: tranquillizer tranquillizer n : a drug used to reduce stress or tension without reducing mental clarity [syn: tranquilizer, tranquilliser, antianxiety agent , ataractic drug, ataractic agent, ataractic]
English → English (gcide) Definition: Tranquillizer Tranquilizer \Tran"quil*i`zer\, Tranquillizer \Tran"quil*li`zer\ , n. One who, or that which, tranquilizes. [1913 Webster]