Definition of vesicle

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