an·​ti-viv·​i·​sec·​tion ˌan-tē-ˌvi-və-ˈsek-shən How to pronounce anti-vivisection (audio)
: opposed to experimentation on living animals especially when considered to cause pain or distress to the subject : opposed to vivisection
anti-vivisection ads
an anti-vivisection organization
anti-vivisectionist noun
… it is cogent to say that I am a strong anti-vivisectionist. G. K. Chesterton

Word History

First Known Use

1863, in the meaning defined above

Time Traveler
The first known use of anti-vivisection was in 1863

Dictionary Entries Near anti-vivisection

Cite this Entry

“Anti-vivisection.” Dictionary, Merriam-Webster, Accessed 10 Dec. 2023.

Medical Definition


often attributive
: opposition to animal experimentation and especially vivisection
the anti-vivisection movement
anti-vivisectionist noun
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