Definitions of bulla
  1. noun
    the round leaden seal affixed to a papal bull
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    type of:
    seal, stamp
    a device incised to make an impression; used to secure a closing or to authenticate documents
  2. noun
    (pathology) an elevation of the skin filled with serous fluid
    synonyms: bleb, blister
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    water blister
    blister containing a nonpurulent clear watery content
    blood blister
    blister containing blood or bloody serum usually caused by an injury
    a small inflamed elevation of skin containing pus; a blister filled with pus
    a pustule in an eruptive disease
    type of:
    cyst, vesicle
    a small anatomically normal sac or bladderlike structure (especially one containing fluid)
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