\ ˈfləks How to pronounce flux (audio) \

Essential Meaning of flux

1 : a series of changes : continuous change Language is in a state of constant flux. = Language is constantly in a state of flux. [=language is changing constantly]
2 technical : a substance used for helping to melt or join metals

Full Definition of flux

 (Entry 1 of 2)

1 : a flowing of fluid from the body: such as
a : diarrhea
b : dysentery
2 : a continuous moving on or passing by (as of a stream)
3 : a continued flow : flood a flux of words
4a : influx
b : change, fluctuation in a state of flux the flux following the death of the emperor
5 : a substance used to promote fusion (as of metals or minerals) especially : one (such as rosin) applied to surfaces to be joined by soldering, brazing, or welding to clean and free them from oxide and promote their union
6 : the rate of transfer of fluid, particles, or energy across a given surface


fluxed; fluxing; fluxes

Definition of flux (Entry 2 of 2)

transitive verb

1 : to cause to become fluid
2 : to treat with a flux

intransitive verb

: to become fluid : fuse

Synonyms & Antonyms for flux

Synonyms: Noun

Synonyms: Verb

Antonyms: Verb

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Examples of flux in a Sentence

Noun the English language is always in a state of flux January typically brings a great flux of returns to department stores. Verb a solid will flux more quickly under pressure
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Recent Examples on the Web: Noun Everything has been in flux this season and last season. ... Akeem Glaspie, The Indianapolis Star, 6 Jan. 2022 Some workers are coming down sick while others are calling out because their child care plans are in flux with some schools closing down. Nathaniel Meyersohn, CNN, 6 Jan. 2022 The theatrical motion picture business remains in flux due to the COVID-19 pandemic, while there remains a high demand for indie dramas, documentaries and series in the streaming universe. Chris Gardner, The Hollywood Reporter, 4 Jan. 2022 Following Kentucky football's dramatic 20-17 win over Iowa in the Citrus Bowl, the Wildcat roster is in flux heading into the offseason. Jon Hale, The Courier-Journal, 1 Jan. 2022 The overall pop-music scene also seems in flux: Some of the biggest stars fell flat with new releases in 2021, critics say. Neil Shah, WSJ, 31 Dec. 2021 The Bruins’ roster for 2022 remains in heavy flux because of the large number of juniors and seniors with remaining eligibility who could opt for the NFL draft or come back for another college season. Ben Bolch, Los Angeles Times, 11 Dec. 2021 This flux in the job market, coupled with a strong economic recovery, has resulted in a high demand for attorneys across the country. Michelle Foster, Forbes, 8 Nov. 2021 Their marriages didn’t survive the radiative flux, and B. and M. now live together, in a gravitational field of their own, otherwise known as Essex County, New Jersey. Nick Paumgarten, The New Yorker, 1 Nov. 2021 Recent Examples on the Web: Verb Those signs can flux when sleep deprived, traveling or stressed at work as well. Sandee Lamotte, CNN, 31 Jan. 2020 Next, clean and flux a shutoff valve for the cold side and slide it over the tubing end place and solder it in place. Steve Willson, Popular Mechanics, 24 Aug. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flux.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of flux


14th century, in the meaning defined at sense 1


15th century, in the meaning defined at transitive sense 1

History and Etymology for flux

Noun and Verb

Middle English, from Anglo-French & Medieval Latin; Anglo-French, from Medieval Latin fluxus, from Latin, flow, from fluere to flow — more at fluid

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Time Traveler for flux

Time Traveler

The first known use of flux was in the 14th century

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Dictionary Entries Near flux




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Statistics for flux

Last Updated

15 Jan 2022

Cite this Entry

“Flux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flux. Accessed 16 Jan. 2022.

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More Definitions for flux


\ ˈfləks How to pronounce flux (audio) \

Medical Definition of flux

1a : a flowing or discharge of fluid from the body especially when excessive or abnormal: as
(1) : diarrhea
(2) : dysentery
b : the matter discharged in a flux
2 : the rate of transfer of fluid, particles, or energy across a given surface

More from Merriam-Webster on flux

Nglish: Translation of flux for Spanish Speakers

Britannica English: Translation of flux for Arabic Speakers

Britannica.com: Encyclopedia article about flux


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