Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun bulla

2 senses of bulla

Sense 1
blister, bulla, bleb -- ((pathology) an elevation of the skin filled with serous fluid)
       => vesicle, cyst -- (a small anatomically normal sac or bladderlike structure (especially one containing fluid))

Sense 2
bulla -- (the round leaden seal affixed to a papal bull)
       => seal, stamp -- (a device incised to make an impression; used to secure a closing or to authenticate documents)