Dictionary
2 ENTRIES FOUND:

bulla

noun bul·la \ˈb-lə\
plural bul·lae \ˈb-ˌlē, -ˌlī\

Definition of BULLA

1
[Medieval Latin] :  the round usually lead seal attached to a papal bull
2
[New Latin, from Latin] :  a hollow thin-walled rounded bony prominence
3
:  a large vesicle or blister

First Known Use of BULLA

14th century

bulla

noun bul·la \ˈbl-ə\   (Medical Dictionary)
plural bul·lae \ˈbl-ˌē, -ˌī\

Medical Definition of BULLA

1
:  a hollow thin-walled rounded bony prominence
2
:  a large vesicle or blister—compare bleb

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