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Definition of groin noun from the Oxford Advanced American Dictionary

     

    groin

     noun
    noun
    NAmE//ɡrɔɪn//
     
     
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  1. 1the part of the body where the legs join at the top, including the area around the genitals (= sex organs) She kicked her attacker in the groin. He's been out all season with a groin injury.
  2. 2a low wall built out into the ocean to prevent it from washing away sand and stones from the beach
See groin in the Oxford Advanced Learner's Dictionary