Definition of autochthonous adjective from the Oxford Advanced Learner's Dictionary

     

    autochthonous

     adjective
    adjective
    BrE BrE//ɔːˈtɒkθənəs//
     
    ; NAmE NAmE//ɔːˈtɑːkθənəs//
     
     
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  1. 1(of people who live in a particular place) whose ancestors all came from the same place synonym indigenous
  2. 2(specialist) (of rock) formed in its present position compare allochthonous
See the Oxford Advanced American Dictionary entry: autochthonous