BULLA

Pronunciation (US): (GB):

Irregular inflected form: bullae

Meaning:

The round leaden seal affixed to a papal bull

Classified under:

Nouns denoting man-made objects

Hypernyms ("bulla" is a kind of...):

seal; stamp (a device incised to make an impression; used to secure a closing or to authenticate documents)

Meaning:

(pathology) an elevation of the skin filled with serous fluid

Synonyms:

bleb; blister; bulla

Classified under:

Nouns denoting body parts

Hypernyms ("bulla" is a kind of...):

cyst; vesicle (a small anatomically normal sac or bladderlike structure (especially one containing fluid))

Domain category:

pathology (the branch of medical science that studies the causes and nature and effects of diseases)

Hyponyms (each of the following is a kind of "bulla"):

water blister (blister containing a nonpurulent clear watery content)

blood blister (blister containing blood or bloody serum usually caused by an injury)

pustule (a small inflamed elevation of skin containing pus; a blister filled with pus)