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fluxion

American  
[fluhk-shuhn] / ˈflʌk ʃən /

noun

  1. an act of flowing; a flow or flux.

  2. Mathematics. the derivative relative to the time.


fluxion British  
/ ˈflʌkʃən /

noun

  1. obsolete maths the rate of change of a function, especially the instantaneous velocity of a moving body; derivative

  2. a less common word for flux flux

"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

Other Word Forms

  • fluxional adjective
  • fluxionally adverb
  • fluxionary adjective

Etymology

Origin of fluxion

1535–45; < Middle French < Late Latin fluxiōn- (stem of fluxiō ) a flowing. See flux, -ion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Newton’s style of differentiation was based upon fluxions—the flows—of mathematical expressions that he called fluents.

From Literature

It would be of particular interest to determine whether the torment of this tissue in any way interfered with the augmentation of bilious fluxion.

From Literature

It should hardly be offensive to an ordinary man to be told, or at least to find it tacitly assumed, that he could not have invented fluxions, painted like Rembrandt, or sung like Pindar.

From Project Gutenberg

It was during his abode at Cambridge that he made his three great discoveries, of fluxions, the nature of light and colors, and the laws of gravitation.

From Project Gutenberg

Newton's discovery of the law of gravitation, and his theory of fluxions place him at the head of the mathematical thinkers of the world.

From Project Gutenberg