FLUX Meaning of FLUX in English n. 1.Flow, flowing.2.Mutation, change, transition, shifting.3.Diarrhoea, dysentery, looseness, lax state ( of the bowels ).4.Fusion, melting.5.Fusing mixture, fusing agent, solvent, menstruum. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012