The lines of force of an electric or magnetic field.
A substance applied to a surface to be joined by welding, soldering, or brazing to facilitate the flowing of solder and prevent formation of oxides.
A mineral added to the metals in a furnace to promote fusing or to prevent the formation of oxides.
An additive that improves the flow of plastics during fabrication.
A readily fusible glass or enamel used as a base in ceramic work.
Constant or frequent change; fluctuation: "The newness and flux of the computer industry has meant many opportunities for women and minorities"(Connie Winkler).
Chemistry & Metallurgy A substance that aids, induces, or otherwise actively participates in fusing or flowing, as:
A substance applied to a surface to be joined by welding, soldering, or brazing to facilitate the flowing of solder and prevent formation of oxides.
A mineral added to the metals in a furnace to promote fusing or to prevent the formation of oxides.
An additive that improves the flow of plastics during fabrication.
A readily fusible glass or enamel used as a base in ceramic work.
v.
fluxed, flux·ing, flux·es
v.
tr.
To melt; fuse.
To apply a flux to.
v.
intr.
To become fluid.
To flow; stream.
[Middle English, from Old French, from Latin flūxus, from past participle of fluere, to flow; see bhleu- in Indo-European roots.]
[fluhks] 
