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vivisectionist

American  
[viv-uh-sek-shuh-nist] / ˌvɪv əˈsɛk ʃə nɪst /

noun

  1. a person who vivisects.

  2. a person who favors or defends the practice of vivisection.

vivisectionist British  
/ ˌvɪvɪˈsɛkʃənɪst /

noun

  1. a person who practises vivisection

  2. a person who advocates the practice of vivisection as being useful or necessary to science

"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

Etymology

Origin of vivisectionist

First recorded in 1875–80; vivisection + -ist

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.