2
: a continuous moving on or passing by (as of a stream)
3
: a continued flow : flood
a flux of words
4
a
: 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
Synonyms
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
Recent Examples on the Web
Swapna Sathyan, Forbes, 5 Nov. 2024
Voting, when utilized as the only tool for societal change, is fraught, as the actors and administrations are always in flux.
—Aissa Dearing, JSTOR Daily, 4 Nov. 2024
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
See all Example Sentences for flux 
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Noun
The success of the construction industry, and those who depend on it for infrastructure and building improvements, relies heavily on a healthy labor workforce and a reliable supply chain—two things that are often in flux.
—Swapna Sathyan, Forbes, 5 Nov. 2024
Voting, when utilized as the only tool for societal change, is fraught, as the actors and administrations are always in flux.
—Aissa Dearing, JSTOR Daily, 4 Nov. 2024
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
See all Example Sentences for flux
Dictionary Entries Near flux
Cite this Entry
“Flux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flux. Accessed 26 Nov. 2024.
Copy CitationKids Definition
flux
1 of 2 noun1
a
: a flowing in
flux of the tide
b
: a series of changes : a state of continuous change
2
: a substance used to aid the melting or joining (as by removing impurities) of metals or minerals
flux
2 of 2 verb1
: to become or cause to become fluid : fuse
2
: to treat with a flux
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