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or tranquillize

[trang-kwuh-lahyz] /ˈtræŋ kwəˌlaɪz/
verb (used with or without object), tranquilized, tranquilizing.
to make or become tranquil.
Also, especially British, tranquillise.
Origin of tranquilize
1615-25; tranquil + -ize
Related forms
tranquilization, noun
untranquilize, verb (used with object), untranquilized, untranquilizing. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Word Origin and History for tranquilization



1620s, from tranquil + -ize. Related: Tranquilized; tranquilizing.

Online Etymology Dictionary, © 2010 Douglas Harper
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tranquilization in Medicine

tranquilize tran·quil·ize or tran·quil·lize (trāng'kwə-līz', trān'-)
v. tran·quil·ized or tran·quil·lized, tran·quil·iz·ing or tran·quil·liz·ing, tran·quil·iz·es or tran·quil·liz·es

  1. To make tranquil; pacify.

  2. To sedate or relieve of anxiety or tension by the administration of a drug.

  3. To become tranquil; relax.

  4. To have a calming or soothing effect.

tran'quil·i·za'tion (-kwə-lĭ-zā'shən) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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