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anaesthetize

[uh-nes-thi-tahyz or, esp. British, uh-nees-]
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verb (used with object), an·aes·the·tized, an·aes·the·tiz·ing.
  1. anesthetize.
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Also especially British, an·aes·the·tise.
Related formsan·aes·the·ti·za·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for anaesthetize

anaesthetize

anaesthetise or US anesthetize

verb
  1. (tr) to render insensible to pain by administering an anaesthetic
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Derived Formsanaesthetization, anaesthetisation or US anesthetization, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for anaesthetize

v.

1848, from Greek anaisthetos (see anaesthesia) + -ize. Related: Anaesthetized; anaesthetizing.

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Online Etymology Dictionary, © 2010 Douglas Harper