a vesicle of the skin, containing watery matter or serum, whether occasioned by a burn or other injury, or by a vesicatory; a collection of serous fluid causing a bladderlike elevation of the cuticle.-any elevation made by the separation of the film or skin, as on plants; or by the swelling of the substance at the surface, as on steel.-a vesicatory; a plaster of spanish flies, or other matter, applied to raise a blister.-to be affected with a blister or blisters; to have a blister form on.-to raise a blister or blisters upon.-to give pain to, or to injure, as if by a blister.