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a. A flow or flowing.
b. Continual change.
2. Archaic
b. fluxions Differential calculus.

[French, from Late Latin flūxiō, flūxiōn-, from Latin flūxus, flux; see flux.]

flux′ion·al adj.
flux′ion·al·ly adv.
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
2. a less common word for flux1, flux2
[C16: from Late Latin fluxiō a flowing]
ˈfluxional, ˈfluxionary adj
ˈfluxionally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈflʌk ʃən)

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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fluxion - a flow or discharge
flow, flowing - the motion characteristic of fluids (liquids or gases)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
La fluxion de poitrine, la fievre qui ne tombe pas, malgre trois saignees: tout cela augure mal de l'avenir de la petite Emilie.
The company was originally founded in 2001 as Fluxion Inc., primarily focused on providing wireless technologies, software/hardware tools design, and knowledge-based services to corporate clients.
On n'arretera pas non plus de deplorer l'exig'ite des dessertes aeriennes directes sur Agadir, en provenance des marches emetteurs de renommee mondiale, tels l'Allemagne, la Grande Bretagne, la Scandinavie-Il est bien vrai que, de temps a autre, certains Tours operateurs se rabattent sur le produit de la capitale du Souss, comme c'est le cas des compagnies norvegiennes, islandaise ou encore britannique-, sans grand effet sur la fluxion escompte, vu leur caractere passager et saccade.
19 June 2014 - US-based Fluxion Biosciences Inc said yesterday it had entered into a partnership with the Stanford University School of Medicine to identify new circulating tumour cells (CTCs) biomarkers.
& MOLNDAL, Sweden, October 12, 2012 -- Cellectricon AB and Fluxion Biosciences announced that they have settled the patent infringement litigation that Cellectricon filed against Fluxion in 2009.
The ninth essay, Joseph Margolis's "Dewey's Metaphysics of Existence," asserts that Dewey's philosophy represents the authoritative form of pragmatism, which recognizes biological aspects of experience and maintains that all knowledge is relative to human purposes; Dewey's pragmatism maintains that nature is in a continuous state of fluxion and that all metaphysical and epistemological issues must be relativized accordingly.
April 26 sees Fluxion, from Greece, at the Chuck Works, New Canal Street, Digbeth, starting at 7.30pm Fluxion's albums Spaces, Vibrant Forms I and Vibrant Forms II, have established him at the forefront of the current wave of minimalist dub.
results in her recognition that this fluxion, this self as object of its