tran·​quil·​ize | \ ˈtraŋ-kwə-ˌlīz How to pronounce tranquilize (audio) , ˈtran- \
variants: or less commonly tranquillize
tranquilized also tranquillized; tranquilizing also tranquillizing

Definition of tranquilize

transitive verb

: to make tranquil or calm : pacify especially : to relieve of mental tension and anxiety by means of drugs

intransitive verb

1 : to become tranquil : relax sense 1
2 : to make one tranquil

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Synonyms & Antonyms for tranquilize



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Examples of tranquilize in a Sentence

They tranquilized the bear with a dart so that it could be safely moved to a different area. at long last the crying baby was tranquilized by the steady rocking of her cradle
Recent Examples on the Web The moose was tranquilized and freed at a state park., "A moose was euthanized in Worcester Tuesday morning after it was struck by two cars, breaking a leg, the Massachusetts Division of Fisheries and Wildlife said.," 3 Oct. 2019 After Bull #33 was tranquilized, he was taken back to the zoo to be given more medicine. Mckenna Oxenden,, "'We regularly train for this’: Behind the scenes of Baltimore’s latest bull escape," 3 Oct. 2019 The bear eventually made its way up a tree and was tranquilized because of its aggressive nature and its location in the city. Mitchell Byars, The Denver Post, "Wildlife officers kill aggressive bear in Boulder," 3 July 2019 The Press-Enterprise reported Saturday that authorities in Corona called in a Riverside County Animal Services officer to tranquilize the 100-pound (45-kilogram) pig Friday. San Diego Union-Tribune, "California authorities use tranquilizer to stop rogue pig," 25 Aug. 2019 His plan was to tranquilize Hillary, with the help of a veterinarian friend, and take her by boat and truck to a refuge in Vacaville that had agreed to look after her. Steve Rubenstein,, "Stranded donkey has plenty to bray about — former cop wants to rescue her," 8 Aug. 2019 It was tranquilized in a coordinated effort between UND police and staff from the Chahinkapa Zoo in Wahpeton. Mike Mcfeely, Twin Cities, "N.D. wildlife officials opposed drugging UND moose, citing consumption risk to hunters," 6 Sep. 2019 Last fall, forestry officials launched a military-style operation, deploying drones, thermal cameras, hundreds of officers and veterinarian sharpshooters mounted on the backs of elephants, to tranquilize the tiger. New York Times, "Tiger Is Beaten to Death on Video, Outraging India," 26 July 2019 Further attempts to usher the bear out went unsuccessful and the Montana Fish, Wildlife and Parks Department was called in to tranquilize the animal so it could be safely removed. Fox News, "Black bear finds its way inside Montana home: 'He was tired and climbed up into the closet for a nap'," 22 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tranquilize.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tranquilize

1623, in the meaning defined at transitive sense

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Time Traveler for tranquilize

Time Traveler

The first known use of tranquilize was in 1623

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Statistics for tranquilize

Last Updated

5 Dec 2019

Cite this Entry

“Tranquilize.” The Dictionary, Merriam-Webster Inc., Accessed 7 December 2019.

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More Definitions for tranquilize


How to pronounce tranquilize (audio)

English Language Learners Definition of tranquilize

: to use a drug to cause (a person or animal) to become very relaxed and calm


transitive verb
variants: or chiefly British tranquillize or tranquillise \ ˈtraŋ-​kwə-​ˌlīz, ˈtran-​ How to pronounce tranquillise (audio) \
tranquilized or chiefly British tranquilized or tranquilised; tranquilizing or chiefly British tranquilizing or tranquilising

Medical Definition of tranquilize

: to make tranquil or calm especially : to relieve of mental tension and anxiety by means of drugs

Other Words from tranquilize

tranquilization or chiefly British tranquillization or tranquillisation \ ˌtraŋ-​kwə-​lə-​ˈzā-​shən, ˌtran-​ How to pronounce tranquillisation (audio) \ noun

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