exponential

[ek-spoh-nen-shuh l, -spuh-] /ˌɛk spoʊˈnɛn ʃəl, -spə-/
1.
of or relating to an exponent or exponents.
2.
Mathematics.
1. of or relating to the constant e.
2. (of an equation) having one or more unknown variables in one or more exponents.
noun
3.
Mathematics.
1. the constant e raised to the power equal to a given expression, as e 3 x, which is the exponential of 3 x.
2. any positive constant raised to a power.
Origin of exponential
1695-1705
1695-1705; exponent + -ial
Related forms
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for non-exponential

exponential

/ˌɛkspəʊˈnɛnʃəl/
1.
(maths) (of a function, curve, series, or equation) of, containing, or involving one or more numbers or quantities raised to an exponent, esp ex
2.
(maths) raised to the power of e, the base of natural logarithms exp
3.
of or involving an exponent or exponents
4.
(informal) very rapid
noun
5.
(maths) an exponential function, etc
Derived Forms
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for non-exponential

exponential

1704, from exponent + -al (1). As a noun, from 1784. Related: Exponentially.

Online Etymology Dictionary, © 2010 Douglas Harper
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non-exponential in Science
 exponential   (ěk'spə-něn'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
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