n. One who kills or deprives of life; especially, a slaughterer; a butcher.n. A club of hard wood, used for killing fish.—n. A delphinid, Orca gladiator, and other species of that genus: so called from their ravenous and ferocious habits.n. A contrivance for killing large ferocious animals.n. The technical name among house-painters for anything used to prevent resin, locally present in woodwork, from exuding and making visible spots on the painted surface; also, in a more general sense, any substance used to remove spots on such surfaces.