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Definition of vivisector
vivisector
/ˈvɪv.əˌsɛk.tɚ/
viv · i · sec · tor
Plural:vivisectors
•Adjective:vivisectional
vivisector Lexical Profile
CEFR
C2
Grade
13
Tier
2
Usage
Rare
vivisector Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A person who performs surgical operations or physiological experiments on living animals for scientific or medical research.
Example
"During the nineteenth century, the renowned physiologist faced intense public scrutiny from activists who labeled him a callous vivisector."
Synonyms
View all synonyms for vivisector Antonyms
View all antonyms for vivisectorWord Nuance & Usage
In contemporary usage, the term is often used pejoratively by animal rights advocates rather than by laboratory researchers themselves.
Word Origin & Etymology
Coined in the mid-19th century as a back-formation from "vivisection," ultimately deriving from the Latin "vivus" (living) and "secare" (to cut).
Cite this Entry
Wordmom. (2026). Definition of Vivisector. In Wordmom Dictionary. Retrieved Nov 2, 2026, from https://wordmom.com/dictionary/vivisector