Sentisection :: Sentisection (n.) Painful vivisection; -- opposed to callisection.
Trisection :: Trisection (n.) The division of a thing into three parts, Specifically: (Geom.) the division of an angle into three equal parts..
Venesection :: Venesection (n.) The act or operation of opening a vein for letting blood; bloodletting; phlebotomy.
Vivisection :: Vivisection (n.) The dissection of an animal while alive, for the purpose of making physiological investigations..
Vivisectionist :: Vivisectionist (n.) One who practices or advocates vivisection; a vivisector.