Blister

blis'ter, n. A thin watery bladder on the skin; a tumor made by a separation of the film or skin, as on plants, or by swelling of the substance at the surface, as on steel; a vesicatory; a plaster applied to raise a blister. — v. t. [blistered (-terd), -tering.] To raise blisters upon; to give pain to, as if by a blister. — v. i. To rise in blisters.