Meaning of tranquilizer

tran•quil•iz•er

Pronunciation: (trang'kwu-lī"zur), [key]
— n.
  1. a person or thing that tranquilizes.
  2. a drug that has a sedative or calming effect without inducing sleep.
  3. See antianxiety drug.
  4. antipsychotic (def. 2).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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