[an-tee-viv-uh-sek-shuh-nist, an-tahy-]
  1. Also an·ti·viv·i·sec·tion. of, relating to, or characteristic of antivivisectionists or their policies.

Origin of antivivisectionist

First recorded in 1880–85; anti- + vivisection + -ist
Related formsan·ti·viv·i·sec·tion·ism, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for anti-vivisectionist

Historical Examples of anti-vivisectionist