WordReference Random House Learner's Dictionary of American English © 2014
flux /flʌks/USA pronunciation  n. 
  1. [countable] a flowing or flow:a flux of traffic.
  2. [uncountable] continuous change or movement:Our plans are in a state of flux.
  3. See -flu-.

Collins Concise English Dictionary © HarperCollins Publishers::

flux /flʌks/ n
  1. a flow or discharge
  2. continuous change; instability
  3. a substance, such as borax or salt, that gives a low melting-point mixture with a metal oxide. It is used for cleaning metal surfaces during soldering, etc, and for protecting the surfaces of liquid metals
  4. a chemical used to increase the fluidity of refining slags in order to promote the rate of chemical reaction
  5. the rate of flow of particles, energy, or a fluid, through a specified area, such as that of neutrons (neutron flux) or of light energy (luminous flux)
  6. the strength of a field in a given area expressed as the product of the area and the component of the field strength at right angles to the area: magnetic flux, electric flux
  7. an excessive discharge of fluid from the body, such as watery faeces in diarrhoea
vb
  1. to make or become fluid
  2. (transitive) to apply flux to (a metal, soldered joint, etc)
Etymology: 14th Century: from Latin fluxus a flow, from fluere to flow



'flux' also found in these entries:
In the English description:

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