Dictionary.com
Thesaurus.com
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

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.

You’d have needed a tranquilizer gun to keep him from chasing after the next story, and the next, and he was still telling stories until his death in 2015.

From Los Angeles Times • May 3, 2025

A rhino targeted for moving was not subdued by a tranquilizer dart shot from a helicopter.

From Seattle Times • Jan. 16, 2024

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

From Salon • Dec. 20, 2023

Officers scrambled to a veterinarian to get a tranquilizer gun and doses of the sedative, only to find that they did not need them.

From Washington Times • Oct. 27, 2023

Even Patrice always had assistants to back him up, and a tranquilizer gun.

From "Endangered" by Eliot Schrefer