BLISTER

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. And painful blisters swelled my tender hands. Grainger.

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. Dunglison. Blister beetle, a beetle used to raise blisters, esp. the Lytta (or Cantharis) vesicatoria, called Cantharis or Spanish fly by druggists. See Cantharis. -- Blister fly, a blister beetle. -- Blister plaster, a plaster designed to raise a blister; -- usually made of Spanish flies. -- Blister steel, crude steel formed from wrought iron by cementation; -- so called because of its blistered surface. Called also blistered steel. -- Blood blister. See under Blood.

To be affected with a blister or blisters; to have a blister form on. Let my tongue blister. Shak.

To raise a blister or blisters upon. My hands were blistered. Franklin.

To give pain to, or to injure, as if by a blister. This tyrant, whose sole name blisters our tongue. Shak.