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Synonyms

tranquilizer

American  
[trang-kwuh-lahy-zer] / ˈtræŋ kwəˌlaɪ zər /
Or tranquillizer

noun

  1. a person or thing that tranquilizes.

  2. a drug that has a sedative or calming effect without inducing sleep.

  3. antianxiety drug.

  4. antipsychotic.


Etymology

Origin of tranquilizer

First recorded in 1790–1800; tranquilize + -er 1

Explanation

A medication that's used to relax patients is called a tranquilizer. If someone suffers from severe anxiety, their doctor might prescribe a tranquilizer. The word tranquilizer is commonly used for anti-anxiety or anti-psychotic drugs, but it's not the term most medical professionals use. They are much more likely to use sedative, neuroleptic, or anxiolytic for a calming medication. Tranquilizer, from tranquility or "the state of being calm," was first used for sedatives in 1824, and for anti-anxiety drugs in 1954.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Zadeh said the cat eventually came to rest in the 2500 block of Pheasant Hill Road, where a second tranquilizer dart was shot, and this one hit its mark.

From Los Angeles Times • Feb. 19, 2025

The bear fell asleep for hours after being shot with tranquilizer darts, then fell out of the tree and landed on a mattress — a soft landing that was supplied by Walter.

From Seattle Times • Jan. 25, 2024

It's called xylazine, a commonly-used animal tranquilizer veterinarians routinely employ in their practice.

From Salon • Dec. 20, 2023

After being treated with a tranquilizer and an anti-inflammatory, the colt didn’t improve and went to the hospital.

From Washington Times • Aug. 21, 2023

Where Martina Crowe had been, Milligan now stood with his tranquilizer gun.

From "The Mysterious Benedict Society" by Trenton Lee Stewart