n. An iron block with a smooth face, usually of steel, on which metals are hammered and shaped.n. Figuratively, anything on which blows are struck.n. In anatomy, one of the small bones of the ear, the incus (which see). See cuts under ear and tympanic.n. In firearms, the resisting cone, plate, or bar against which the fulminate in a metallic cartridge is exploded. Wilhelm, Mil. Dict.n. Milit., a small pennon on the end of a lance.To form or shape on an anvil.