flux

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flux

  • /flʌks/

Rhymes with -ʌks

Where it comes from

From Old French flux, from Latin fluxus (“flow”).

noun fluxes

  1. countable, uncountable The act of flowing; a continuous moving on or passing by, as of a flowing stream. By […]the perpetual Flux of the Liquids, a great part of the Liquids is thrown out of the Body.
  2. countable, uncountable A state of ongoing change. The schedule is in flux at the moment.

    Opposite: stasis

  3. countable, uncountable A chemical agent for cleaning metal prior to soldering or welding. It is important to use flux when soldering or oxides on the metal will prevent a good bond.
  4. countable, uncountable The rate of transfer of energy (or another physical quantity), especially an electric or magnetic field, through a given surface. That high a neutron flux would be lethal in seconds.
  5. archaic, countable, uncountable A disease which causes diarrhea, especially dysentery. The next year vvas calamitous, bringing ſtrange fluxes upon men, and murren upon Cattel.
  6. archaic, countable, uncountable Diarrhea or other fluid discharge from the body.
  7. countable, uncountable The state of being liquid through heat; fusion.

verb fluxes · fluxing · fluxed

  1. transitive To use flux on. You have to flux the joint before soldering.
  2. transitive To melt.
  3. intransitive To flow as a liquid.

adjective

  1. not comparable, uncommon Flowing; unstable; inconstant; variable. The flux nature of all things here.

Thesaurus

Closest in meaning: flux density, magnetic field, magnetic flux, fluxion, flow, streaming, flowing, inflow, influx, outflow, fluidity, efflux, fluctuation, luminous, ebb, flood

Translations

Every language

noun state of ongoing change

Españolfluxión
日本語多様性 tayōsei
Portuguêsfluxo
DeutschFluss
Italianoflusso
Ελληνικάρευστότητα refstótita
Русскийизме́нчивость izménčivostʹ, постоянное движе́ние postojannoje dvižénije, разнообра́зие raznoobrázije, тече́ние tečénije

noun chemical agent for cleaning metal prior to soldering or welding

Españolfundente
日本語融剤 yūzai
Portuguêsfundente
Françaisdécapant
DeutschFlussmittel
Italianoflussante
Ελληνικάτήξη tíxi
Русскийфлюс fljus

noun rate of transfer of energy (electric flux, magnetic flux)

Españolflujo
日本語流量 ryūryou
Portuguêsfluxo
Françaisflux
DeutschFluss
Italianoflusso
Ελληνικάροή roḯ
Русскийпото́к potók
Tiếng Việtthông lượng

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Cite this
MLA

"flux." Wiktionary, via Micwyn, micwyn.com/word/flux. Accessed 6 Nov. 2026.

APA

flux. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/flux

Chicago

"flux." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/flux.

BibTeX
@misc{flux_2026,
  title = {flux},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/flux},
  urldate = {2026-11-06}
}