bulla

  1. Noun.  (medicine) A blister, vesicle, or other thin-walled cavity or lesion.
  2. Noun.  (archaeology) A clay envelope or hollow ball, typ. with seal impressions or writing on its outside indicating its contents.
  3. Noun.  (historical) In ancient Rome, a kind of amulet or boss.
  4. Noun.  Later, handwritten document from the papal chancellery.

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This entry was last updated on RefTopia from its source on 3/20/2012.