Noun: bulla (bullae) bû-lu
- An elevation of the skin filled with serous fluid, caused by rubbing or friction
"new shoes often give me bullae";
- blister, bleb
- The round leaden seal affixed to a papal bull
"The authenticity of the document was confirmed by the presence of the papal bulla"
Derived forms: bullae
Type of: cyst, seal, stamp, vesicle
Encyclopedia: Bulla, amulet