n.
Pronunciation: ' bu ̇ -l ə
Function: noun
Inflected Form: plural bul · lae \ ' bu ̇ - ˌ l ē , - ˌ l ī \
Date: 14th century
1 [Medieval Latin] : the round usually lead seal attached to a papal bull
2 [ New Latin, from L] : a hollow thin-walled rounded bony prominence
3 : a large vesicle or blister