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Definition of vesicle noun from the Oxford Advanced American Dictionary

     

    vesicle

     noun
    noun
    NAmE//ˈvɛsɪkl//
     
     
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  1. 1(biology) a small bag or hollow structure in the body of a plant or an animal
  2. 2(medical) a small swelling filled with liquid under the skin synonym blister
See the Oxford Advanced Learner's Dictionary entry: vesicle