# exponential

[ ek-spoh-nen-shuh l, -spuh- ]

/ ˌɛk spoʊˈnɛn ʃəl, -spə- /

### adjective

of or relating to an exponent or exponents.

Mathematics.

- of or relating to the constant e.
- (of an equation) having one or more unknown variables in one or more exponents.

rising or expanding at a steady and usually rapid rate:a city experiencing exponential growth.

### noun

Mathematics.

- the constant e raised to the power equal to a given expression, as e3x, which is the exponential of 3x.
- any positive constant raised to a power.

## Nearby words

Related formsex·po·nen·tial·ly, adverbnon·ex·po·nen·tial, adjectivenon·ex·po·nen·tial·ly, adverb

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## Examples from the Web for exponential

## British Dictionary definitions for exponential

## exponential

/ (ˌɛkspəʊˈnɛnʃəl) /

### adjective

maths (of a function, curve, series, or equation) of, containing, or involving one or more numbers or quantities raised to an exponent, esp e x

maths raised to the power of e, the base of natural logarithmsSymbol: exp

of or involving an exponent or exponents

informal very rapid

### noun

maths an exponential function, etc

Derived Formsexponentially, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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## Word Origin and History for exponential

Online Etymology Dictionary, © 2010 Douglas Harper

## Science definitions for exponential

## exponential

[ ĕk′spə-nĕn′shəl ]

Relating to a mathematical expression containing one or more exponents.♦ Something is said to increase or decrease exponentially if its rate of change must be expressed using exponents. A graph of such a rate would appear not as a straight line, but as a curve that continually becomes steeper or shallower.

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.