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The Collaborative International Dictionary of English v.0.48 (gcide)

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.
[1913 Webster]

{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}.

{Saltatory spasm} (Med.), an affection in which pressure of
the foot on a floor causes the patient to spring into the
air, so as to make repeated involuntary motions of hopping
and jumping. --J. Ross.
[1913 Webster]