Meaning of FLUX in English
flux /flʌks/ BrE AmE noun [uncountable]
[ Date: 1300-1400 ; Language: Latin ; Origin: fluxus , past participle of fluere 'to flow' ]
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.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012