Definition of tubercle noun from the Oxford Advanced American Dictionary

     

    tubercle

     noun
    noun
    NAmE//ˈtubərkl//
     
     
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  1. 1(anatomy) (biology) a small round lump, especially on a bone or on the surface of an animal or plant
  2. 2 (medical) a small swollen area in the lung caused by tuberculosis
See the Oxford Advanced Learner's Dictionary entry: tubercle