blis'ter. i

A collection of serous, watery, or bloody fluid beneath the epidermis. 2. A vesicant, b. beetle, b. fly. See Cantharis. b. plant. Ranunculus acris. b. plaster. See ceratum cantharid is. blistering liquid [Br. Ph.]. See liquor epispastic us, under liquor, blood b. A b. containing blood, fly b. A vesicant consisting of a preparation of cantharides (usually the ceratum cantharid is), as distinguished from other vesicants, flying b. 1. A b. which is punctured and allowed to heal at once. 2. A b. which is applied to different portions of a given region of the body succe ively, water b. A b. containing watery contents. [Perhaps from Ang.-Sax., blaest an, to blast or puff.]