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BLIS'TER, noun

1. A pustule; a thin bladder on the skin, containing watery matter or serum, whether occasioned by a burn, or other injury, or by a vesicatory. It is formed by raising the cuticle.

2. Any tumor 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.

3. A vesicatory; a plaster of flies, or other matter, applied to raise a vesicle.

BLIS'TER, verb transitive To rise in blisters.

BLIS'TER, verb transitive To raise a blister by any hurt, burn or violent action upon the skin; to raise a blister by a medical application, or vesicatory.

1. To raise tumors on iron bars in a furnace, in the process of converting iron into steel.