The Collaborative International Dictionary of English v.0.48:

Conflux \Con"flux\, n. [From L. confluxus, p. p. See
   Confluent.]
   1. A flowing together; a meeting of currents. "The conflux of
      meeting sap." --Shak.
      [1913 Webster]

            The general conflux and concourse of the whole
            people.                               --Clarendon.
      [1913 Webster]

   2. A large assemblage; a passing multitude.
      [1913 Webster]

            To the gates cast round thine eye, and see
            What conflux issuing forth, or entering in.
                                                  --Milton.
      [1913 Webster]

WordNet (r) 3.0 (2006):

conflux
    n 1: a flowing together [syn: confluence, conflux,
         merging]