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

     

    geological

     adjective
    adjective
    BrE BrE//ˌdʒiːəˈlɒdʒɪkl//
     
    ; NAmE NAmE//ˌdʒiːəˈlɑːdʒɪkl//
     
    (also geologic
    BrE BrE//ˌdʒiːəˈlɒdʒɪk//
     
    ; NAmE NAmE//ˌdʒiːəˈlɑːdʒɪk//
     
    )
     
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  1. 1connected with the scientific study of the earth, including the origin and history of the rocks and soil of which the earth is made geological sciences
  2. 2connected with the origin and history of the rocks and soil of a particular area a geological survey the vast span of geological time (= the whole of time since the earth began)