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[yoo-thuh-nahyz] /ˈyu θəˌnaɪz/
verb (used with object), euthanized, euthanizing.
to subject to euthanasia:
to euthanize injured animals.
Also, euthanatize
[yoo-than-uh-tahyz] /yuˈθæn əˌtaɪz/ (Show IPA).
especially British, euthanise, euthanatise.
Origin of euthanize
1960-65; euthan(asia) + -ize Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for euthanize
  • In many cases, they say it's actually more humane to euthanize cats, rather than condemn them to a harsh life on the streets.
  • When it is necessary to euthanize an animal, it is by a certified euthanasia technician or veterinarian.
  • Perpetration-induced traumatic stress in persons who euthanize nonhuman animals in surgeries, animal shelters, and laboratories.
  • For example, it may not be possible to euthanize an adult cow using barbiturates without proper head restraint.
  • Therefore, a municipal animal pound is not authorized to use a decompression chamber to euthanize wildlife.
  • Humanely euthanize animals and pets that are not reclaimed, adopted, or suitable for reclamation or adoption.
  • Veterinarians of all types euthanize animals when necessary.
  • Their first priority is to euthanize the suffering animals.
  • The decision was made to euthanize all sick and exposed cats to stop the spread of the infection.
British Dictionary definitions for euthanize


(transitive) to kill (a person or animal) painlessly, esp to relieve suffering from an incurable illness
Word Origin
C20: back formation from euthanasia
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
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Word Origin and History for euthanize

by 1915, in place of earlier and etymologically correct euthanatize (1873); see euthanasia + -ize. Related: Euthanized; euthanizing.

Online Etymology Dictionary, © 2010 Douglas Harper
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