As a staunch vegetarian, he was a firm anti-vivisectionist and antagonistic to cruel sports for the remainder of his life.
From the en.wikipedia.org
In The Island of Dr Moreau the visionary vivisectionist performs vile experiments on animals with the aim of remaking them as humans.
From the guardian.co.uk
Thanks for a vivisectionist analysis.
From the guardian.co.uk
More examples
A biologist who cuts open live animals for research
(vivisection) the act of operating on living animals (especially in scientific research)
Vivisection (from Latin vivus ("alive") + sectio ("cutting")) is defined as surgery conducted for experimental purposes on a living organism, typically animals with a central nervous system, to view living internal structure. ...
(Vivisection (Role-playing game sourcebook)) Noctum is a pen and paper survival horror Role-playing game developed by Mischa L Thomas . There are two earlier Swedish editions published by Wicked World Games 1.1. The third edition is published by Mongoose Publishing under their Flaming Cobra imprint.
(vivisection) The action of cutting, surgery or other invasive treatment of a living organism for the purposes of physiological or pathological scientific investigation
(Vivisection) The use of the same methods used in human surgery in animals with the goal of advancing medical science and the well-being of humans and animals alike.
(vivisection) Cutting or operating on a live animal. The term also refers more generally to experimentation on animals for medical research and product testing. ...
(vivisection) medical research consisting of surgical operations or other experiments performed on living animals to study the structure and function of living organs and parts.