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

     

    exponential

     adjective
    adjective
    BrE BrE//ˌekspəˈnenʃl//
     
    ; NAmE NAmE//ˌekspəˈnenʃl//
     
     
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  1. 1 (mathematics) of or shown by an exponent 2 4 is an exponential expression. an exponential curve/function
  2. 2(formal) (of a rate of increase) becoming faster and faster exponential growth/increase
  3. Word Origin early 18th cent.: from French exponentiel, from Latin exponere ‘put out’, from ex- ‘out’ + ponere ‘put’.
See the Oxford Advanced American Dictionary entry: exponential