Found 2 items, similar to bulla.
English → English (WordNet) Definition: bulla bulla n 1: (pathology) an elevation of the skin filled with serous fluid [syn: blister, bleb] 2: the round leaden seal affixed to a papal bull [also: bullae (pl)]
English → English (gcide) Definition: Bulla Bulla \Bul"la\, n.; pl. Bull[ae]. [L. bulla bubble. See Bull an edict.] 1. (Med.) A bleb; a vesicle, or an elevation of the cuticle, containing a transparent watery fluid. [1913 Webster] 2. (Anat.) The ovoid prominence below the opening of the ear in the skulls of many animals; as, the tympanic or auditory bulla. [1913 Webster] 3. A leaden seal for a document; esp. the round leaden seal attached to the papal bulls, which has on one side a representation of St. Peter and St. Paul, and on the other the name of the pope who uses it. [1913 Webster] 4. (Zo["o]l.) A genus of marine shells. See Bubble shell. [1913 Webster]