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English definition of “vivisectionist”

vivisectionist

noun [C] uk   /ˌvɪv.ɪˈsek.ʃən.ɪst/ us  
a person who is involved in or believes in the use of vivisectionMedical studies and the people who study them
(Definition of vivisectionist from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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