flux Copy link Outline I. The act of flowingII. Med. t. t.1. fluxus, fluxio2. proflŭvium • flux: I. The act of flowing: fluxus, ūs: v. flowing. Phr.: all things are in a state of f., omnia f., Lucr. 2, 68. II. Med. t. t.: 1. fluxus, fluxio: bloody f., sanguinis fluxus, fluxio: Plin. 2. proflŭvium: Col.: Plin.