Definitions
1.nounAny function that has an exponent as an independent variable.
2.adjectiveRelating to an exponent.
3.adjectiveExpressed in terms of a power of e.
4.adjectiveCharacterised by a rate of change that is proportional to the value of the varying quantity, or, equivalently, by a doubling or halving over successive fixed intervals of time or other parameter."There were two deaths on Monday, four on Tuesday, and eight on Wednesday. The rate of increase seems exponential."
5.adjectiveCharacterised by a very rapid rate of change, especially increase.