flux

En español: fluxión, fundente, flujo

1. The act of flowing; a continuous moving on or passing by, as of a flowing stream. (countable, uncountable)
2. A state of ongoing change. (countable, uncountable) · The schedule is in flux at the moment.· Languages, like our bodies, are in a continual flux.
3. A chemical agent for cleaning metal prior to soldering or welding. (countable, uncountable) · It is important to use flux when soldering or oxides on the metal will prevent a good bond.
4. The rate of transfer of energy (or another physical quantity), especially an electric or magnetic field, through a given surface. (countable, uncountable) · That high a neutron flux would be lethal in seconds.
5. The state of being liquid through heat; fusion. (countable, uncountable)

Plural fluxes