The Collaborative International Dictionary
Bulla \Bul"la\, n.; pl. Bull[ae]. [L. bulla bubble. See Bull an edict.]
(Med.) A bleb; a vesicle, or an elevation of the cuticle, containing a transparent watery fluid.
(Anat.) The ovoid prominence below the opening of the ear in the skulls of many animals; as, the tympanic or auditory bulla.
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.
(Zo["o]l.) A genus of marine shells. See Bubble shell.
Wiktionary
n. (plural of bulla English)
WordNet
See bulla
Usage examples of "bullae".
Let us, every one of us, bring our gold and silver and bronze money, tomorrow, to the treasury, only reserving the rings for ourselves, our wives and our children, and the bullae for our boys.