[ˌɛkspə(ʊ)ˈnɛnʃl], (Adjective)

Definitions:
- (of an increase) becoming more and more rapid
(e.g: the social security budget was rising at an exponential rate)

- of or expressed by a mathematical exponent
(e.g: an exponential curve)


Phrases:

Origin:
early 18th century: from French exponentiel, from Latin exponere ‘put out’ (see expound)