tranquilizer

or tran·quil·liz·er

[ trang-kwuh-lahy-zer ]
/ ˈtræŋ kwəˌlaɪ zər /

noun

a person or thing that tranquilizes.
a drug that has a sedative or calming effect without inducing sleep.

Origin of tranquilizer

First recorded in 1790–1800; tranquilize + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tranquilizer

Medicine definitions for tranquilizer

tranquilizer

[ trăngkwə-līz′ər, trăn- ]

n.

Any of various drugs used to reduce tension or anxiety; an antianxiety agent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.