Bulla
Origin 1
Borrowing from la bulla.
Noun
bulla
(plural bullae)- (medicine) A blister, vesicle, or other thin-walled cavity or lesion.
- (archaeology) A clay envelope or hollow ball, typically with seal impressions or writing on its outside indicating its contents.
- (historical) In ancient Rome, a kind of amulet or boss.
- Later, a handwritten document from the papal chancellery.