Definition of euthanize in English:

euthanize

Syllabification: eu·tha·nize
Pronunciation: /ˈyo͞oTHəˌnīz
 
/

verb

[with object] (usually be euthanized) North American
  • Put (a living being, especially a dog or cat) to death humanely.
    More example sentences
    • A young, arrogant veterinarian unable to concentrate on the needs of animals hastily euthanizes an ill horse.
    • This story is about this woman who worked for the humane society and euthanized a stray cat.
    • In the United States, critically injured racehorses are humanely euthanized by lethal injection.

Origin

1970s: formed irregularly from euthanasia + -ize.

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a powerful whirlpool in the sea

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