flux:

n. (1fl&ks) Middle English, from MFr. & Med. Lat.; MFr, from Med. Lat. [fluxus], from Latin, "flow", from fluere "to flow"

  1. A continuous moving on or passing by (as of a stream)
  2. A continued flow:(FLOOD)
  3. (INFLUX, CHANGE, FLUCTUATION)<in a state of flux>