Definition of retroflex adjective from the Oxford Advanced American Dictionary

     

    retroflex

     adjective
    adjective
    NAmE//ˈrɛtrəˌflɛks//
     
     
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  1. 1(medical) (of a part of the body) turned backward
  2. 2(phonetics) (of a speech sound) produced with the end of the tongue turned up against the hard palate
See the Oxford Advanced Learner's Dictionary entry: retroflex