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a. A flow or flowing.
b. Continual change.
a. See derivative.
b. fluxions Differential calculus.
[French, from Late Latin flūxiō, flūxiōn-, from Latin flūxus, flux; see flux.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Mathematics) maths obsolete the rate of change of a function, esp the instantaneous velocity of a moving body; derivative
[C16: from Late Latin fluxiō a flowing]
ˈfluxional, ˈfluxionary adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. an act of flowing; flow or flux.
2. continuous change.
3. Math. the derivative relative to the time.
[1535–45; < Middle French < Late Latin fluxiō, for Latin fluctio]
flux′ion•al, flux′ion•ar•y, adj.
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