[flux] n [ME, fr. MF & ML; MF, fr. ML fluxus, fr. L, flow, fr. fluere to flow--more at fluid] (14c) 1: a flowing of fluid from the body; esp: an excessive abnormal discharge from the bowels
2: a continuous moving on or passing by (as of a stream)
3: a continued flow: flood
4. a: influx b: change, fluctuation "in a state of ~"
5: a substance used to promote fusion (as of metals or minerals); esp: one (as rosin) applied to surfaces to be joined by soldering, brazing, or welding to clean and free them from oxide and promote their union
6: the rate of transfer of fluid, particles, or energy across a given surface
[2]flux vt (15c) 1: to cause to become fluid
2: to treat with a flux ~ vi: to become fluid: fuse