Source : Webster's Revised Unabridged Dictionary (1913)

Dynamism \Dy"na*mism\, n. [Cf. F. dynamisme. See {Dynamics}.]
   The doctrine of Leibnitz, that all substance involves force.

Source : WordNet®

dynamism
     n 1: any of the various theories or doctrines or philosophical
          systems that attempt to explain the phenomena of the
          universe in terms of some immanent force or energy
     2: the activeness of an energetic personality [syn: {pizzazz},
        {pizzaz}, {oomph}, {zing}]