BLISTER

I. noun Etymology: Middle English ~, blester, probably from Old English *blýster, *blǣster; akin to Old Norse blāstr swelling, Old English blǣst blast Date: 14th century an elevation of the epidermis containing watery liquid, an enclosed raised spot (as in paint) resembling a ~, an agent (as lewisite) that causes ~ing, a fungal disease of plants marked by raised patches on the leaves, any of various structures that bulge out (as a gunner's compartment on a bomber), ~y adjective II. verb (~ed; ~ing) Date: 15th century intransitive verb to become affected with a ~, transitive verb to raise a ~ on, lambaste 2