vesicle

  1. Noun.  (cytology) A membrane-bound compartment found in a cell.
  2. Noun.  A small bladder-like cell or cavity.
  3. Noun.  (anatomy) A small sac or cyst or vacuole, especially one containing fluid. A blister formed in or beneath the skin, containing serum. A bleb.
  4. Noun.  (anatomy) A pocket of embryonic tissue that is the beginning of an organ.
  5. Noun.  (geology) A small cavity formed in volcanic rock by entrapment of a gas bubble during solidification.

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