Vivisection

viv-i-sek′shun, n. the practice of making operations or painful experiments on living animals, for the purposes of physiological research or demonstration.— v.t. Vivisect′ , to practise vivisection on.— adj. Vivisec′tional .— ns. Vivisec′tionist , one who practises or defends vivisection; Vivisec′tor , one who practises vivisection; Vivisectō′rium , a place for vivisection. [L. vivus , alive, sectio — secāre , to cut.]