flux
The act of flowing; a continuous moving on or passing by, as of a flowing stream.
Other meanings
A state of ongoing change.
“The schedule is in flux at the moment.”
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.”
Where this comes from
This definition is adapted from “flux” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.