/ Dictionary / Index V vivisectionist: Meaning and Definition of Find definitions for: viv•i•sec•tion•ist Pronunciation: (viv"u-sek'shu-nist), [key] — n. a person who vivisects. a person who favors or defends the practice of vivisection. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vivisectionist (Thesaurus) vivisection Vivyan Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language