flux /flʌks/noun 7verb 3adjective 1forms 3 noun7 •The act of flowing; a continuous moving on or passing by, as of a flowing stream.By […]the perpetual Flux of the Liquids, a great part of the Liquids is thrown out of the Body. — 1731 •A state of ongoing change.The schedule is in flux at the moment.Languages, like our bodies, are in a continual flux. •The rate of transfer of energy (or another physical quantity), especially an electric or magnetic field, through a given surface.That high a neutron flux would be lethal in seconds. •A chemical agent for cleaning metal prior to soldering or welding.It is important to use flux when soldering or oxides on the metal will prevent a good bond. •The state of being liquid through heat; fusion. •(no longer used) A disease which causes diarrhea, especially dysentery.The next year vvas calamitous, bringing strange fluxes upon men, and murren upon Cattel. — 1670 •(no longer used) Diarrhea or other fluid discharge from the body. verb3 •To flow as a liquid. •To use flux on.You have to flux the joint before soldering. •To melt. adjective1 •Flowing; unstable; inconstant; variable.The flux nature of all things here. — 1677 formsfluxed · fluxing · fluxes