bulla

2 definitions found

bulla - Collaborative International Dictionary of English v.0.48 :

  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. (Zool.) A genus of marine shells. See Bubble shell.
        [1913 Webster]

bulla - WordNet (r) 2.1 (2005) :

  bulla
      n 1: (pathology) an elevation of the skin filled with serous
           fluid [syn: blister, bulla, bleb]
      2: the round leaden seal affixed to a papal bull