Longman Dictionary of Contemporary English homepage

Date: 1300-1400
Language: Latin
Origin: fluxus, past participle of fluere 'to flow'

flux

 noun
     
flux [uncountable]
a situation in which things are changing a lot and you cannot be sure what will happen:
Everything is in flux at the moment.
The education system is still in a state of flux.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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