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euthanasia

American  
[yoo-thuh-ney-zhuh, -zhee-uh, -zee-uh] / ˌju θəˈneɪ ʒə, -ʒi ə, -zi ə /

noun

euthanasias plural
  1. Also called mercy killing.  the act of putting to death painlessly or allowing to die, as by withholding extreme medical measures, a person or animal suffering from an incurable, especially a painful, disease or condition.

  2. painless death.


euthanasia British  
/ ˌjuːθəˈneɪzɪə /

noun

  1. Also called: mercy killing.  the act of killing someone painlessly, esp to relieve suffering from an incurable illness

"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

euthanasia Scientific  
/ yo̅o̅′thə-nāzhə /
  1. The act or practice of painlessly ending the life of an animal or a willing individual who has a terminal illness or incurable condition, as by giving a lethal drug.


euthanasia Cultural  
  1. Painlessly putting someone to death — usually someone with an incurable and painful disease; mercy killing.


Discover More

Proposals to make euthanasia legal in the United States have inspired heated debate.

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Nouns

Etymology

Origin of euthanasia

1640–50; < New Latin < Greek euthanasía an easy death, equivalent to eu- eu- + thánat ( os ) death + -ia -y 3

Explanation

Euthanasia is the act of causing a person's or animal's death, without inflicting pain, to end suffering, like when a veterinarian performs euthanasia on a dog that is in great pain and has no chance of recovery. To correctly pronounce euthanasia, remember that it sounds like "youth in Asia." Euthanasia is sometimes referred to as mercy killing, meant to spare a living thing a slow, painful death. Originally a Greek word, euthanasia means "an easy or happy death," as eu- means "good" and thanatos means "death." The use of the word as "legally sanctioned mercy killing" is first recorded in English in 1869.

Keep Reading on Vocabulary.com

Vocabulary lists containing euthanasia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Volunteers and community members have voiced concerns to the Animal Services Commission about poor conditions causing kennel stress, or behavioral decline in animals inside the shelter, sometimes leading to euthanasia.

From Los Angeles Times Apr. 17, 2026

Among the challenges Amster will face are a rising euthanasia rate.

From Los Angeles Times Apr. 17, 2026

Dychtwald also expects that active and passive euthanasia might become openly discussed.

From The Wall Street Journal Apr. 13, 2026

Spain's euthanasia law came into force in 2021.

From BBC Mar. 26, 2026

Vet number two tested her blood and phoned me a few days later suggesting I consider euthanasia.

From "Me Talk Pretty One Day" by David Sedaris

Larger dogs can take up to twice as long to get adopted, exacerbating overcrowding and leading to more euthanasias, she said.

From Los Angeles Times Nov. 22, 2024

“I’ve noted that Palmdale and Lancaster have a disproportionately large amount of euthanasias labeled as behavior,” the senior staffer wrote, adding that they had decided to look more closely at the numbers for those shelters.

From Los Angeles Times Dec. 3, 2023

The number of euthanasias performed during those hours at the Baldwin Park shelter could not be determined because many of its time stamps were missing from records.

From Los Angeles Times Dec. 3, 2023

In a different era, the intense animal hoarding might have been handled with back-to-back euthanasias rather than rehousing the cats.

From Washington Times Jan. 13, 2020

Every day, five to 12 euthanasias are performed at PVSEC, the region’s largest specialty and emergency veterinary center, seeing several hundred cases a day.

From Washington Times Jul. 8, 2017

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