Source : Webster's Revised Unabridged Dictionary (1913)

Saltatory \Sal"ta*to"ry\, a. [L. saltatorius. See {Saltant}, and
   cf. {Saltire}.]
   Leaping or dancing; having the power of, or used in, leaping
   or dancing.

   {Saltatory evolution} (Biol.), a theory of evolution which
      holds that the transmutation of species is not always
      gradual, but that there may come sudden and marked
      variations. See {Saltation}.