We found 26 dictionaries that define the word mercy killing:

General (18 matching dictionaries)

1. mercy killing: Longman Dictionary of Contemporary English
2. mercy killing: Merriam-Webster
3. mercy killing: Oxford Learner's Dictionaries
4. mercy killing: American Heritage Dictionary of the English Language
5. mercy killing: Collins English Dictionary
6. mercy killing: Vocabulary.com
7. mercy killing: Cambridge Advanced Learner's Dictionary
8. mercy-killing, mercy killing: Wiktionary
9. mercy killing: The Wordsmyth English Dictionary-Thesaurus
10. mercy killing: Infoplease Dictionary
11. mercy killing: Dictionary.com
12. Mercy killing: Wikipedia, the Free Encyclopedia
13. mercy killing: Rhymezone
14. mercy killing: FreeDictionary.org
15. mercy killing: Mnemonic Dictionary
16. mercy killing: TheFreeDictionary.com

Business (3 matching dictionaries)

17. mercy killing: Merriam-Webster Legal Dictionary
18. Everybody's Legal Dictionary (No longer online)
19. Mercy-killing, mercy killing: Legal dictionary

Computing (1 matching dictionary)

20. Mercy-killing, mercy killing: Encyclopedia

Medicine (3 matching dictionaries)

21. mercy killing: Merriam-Webster Medical Dictionary
22. mercy killing: Dictionary of Cancer Terms
23. Mercy-killing, mercy killing: Medical dictionary

Slang (1 matching dictionary)

24. mercy killing: Urban Dictionary

(Note: See mercy_killings as well.)

Definitions from Wiktionary (mercy killing) ▸ noun:  Active euthanasia. ▸ noun:  (sports) In sports, a premature ending of a one-sided game or contest due to a mercy rule. Similar: euthanasia, active euthanasia, senicide, deathmaking, murdercide, hereticide, lethal injection, self-death, malicide, autocide, more... Opposite: euthanasia, assisted suicide, mercy death Types: euthanasia, assisted suicide, active euthanasia, passive euthanasia, more... Adjectives: suicidogenic, parasuicidal, parricidal, suicidal, liberticide, killing, columbine, annihilationist, murdered, kamikaze, self-inflicted ▸ Words similar to mercy killing ▸ Usage examples for mercy killing ▸ Idioms related to mercy killing ▸ Wikipedia articles (New!) ▸ Words that often appear near mercy killing ▸ Rhymes of mercy killing ▸ Invented words related to mercy killing