a flowing or flow.

the flowing in of the tide.

continuous change, passage, or movement

His political views are in a state of flux.

Physics .

the rate of flow of fluid, particles, or energy.

a quantity expressing the strength of a field of force in a given area.

Chemistry, Metallurgy .

a substance used to refine metals by combining with impurities to form a molten mixture that can be readily removed.

a substance used to remove oxides from and prevent further oxidation of fused metal, as in soldering or hot-dip coating.

(in the refining of scrap or other metal) a salt or mixture of salts that combines with nonmetallic impurities, causing them to float or coagulate.

fusion.

to melt; make fluid.

to fuse by the use of flux.

Obsolete . to purge.

to flow.

noun

constancy , stability , steadiness

noun

alteration , change , flow , fluctuation , fluidity , instability , modification , motion , mutability , mutation , transition , unrest , current , drift , flood , rush , spate , stream , surge , tide , additive , discharge , flowing , fuse , fusion , melt , resin , substance

verb

deliquesce , dissolve , fuse , liquefy , run , thaw