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Meaning of antivivisectionist

an•ti•viv•i•sec•tion•ist

Pronunciation: (an"tē-viv"u-sek'shu-nist, an"tī-), [key]
— n.
  1. a person who opposes vivisection.
—adj.
  1. of, pertaining to, or characteristic of antivivisectionists or their policies.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.