- 1(mathematics) of or shown by an exponent 2 4 is an exponential expression. an exponential curve/function
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- 2(formal) (of a rate of increase) becoming faster and faster exponential growth/increase
NAmE//ˌɛkspəˈnɛnʃəli//
adverb to increase exponentiallySee exponential in the Oxford Advanced Learner's DictionaryCheck pronunciation: exponential