flux
 flux (flŭks)n.
1.
a. A flow or flowing.
b. A continued flow; a flood. See Synonyms at flow.
2. The flowing in of the tide.
3. Medicine. The discharge of large quantities of fluid material from the body, especially the discharge of watery feces from the intestines.
4. Physics.
a. The rate of flow of fluid, particles, or energy through a given surface.
b. See flux density.
c. The lines of force of an electric or magnetic field.
5. Constant or frequent change; fluctuation: “The newness and flux of the computer industry has meant many opportunities for women and minorities” (Connie Winkler).
6. Chemistry & Metallurgy. A substance that aids, induces, or otherwise actively participates in fusing or flowing, as:
a. 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.
b. A mineral added to the metals in a furnace to promote fusing or to prevent the formation of oxides.
c. An additive that improves the flow of plastics during fabrication.
d. A readily fusible glass or enamel used as a base in ceramic work.v. fluxed, flux·ing, flux·esv. tr.
1. To melt; fuse.
2. To apply a flux to.v. intr.
1. To become fluid.
2. To flow; stream. [Middle English, from Old French, from Latin flūxus, from past participle of fluere, to flow. See bhleu- in Indo-European Roots.]
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