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fluxion

[fluhk-shuh n] /ˈflʌk ʃən/
noun
1.
an act of flowing; a flow or flux.
2.
Mathematics. the derivative relative to the time.
Origin of fluxion
1535-1545
1535-45; < Middle French < Late Latin fluxiōn- (stem of fluxiō) a flowing. See flux, -ion
Related forms
fluxional, fluxionary, adjective
fluxionally, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for fluxional

fluxion

/ˈflʌkʃən/
noun
1.
(maths, obsolete) the rate of change of a function, especially the instantaneous velocity of a moving body; derivative
2.
a less common word for flux (sense 1), flux (sense 2)
Derived Forms
fluxional, fluxionary, adjective
fluxionally, adverb
Word Origin
C16: from Late Latin fluxiō a flowing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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