GNU Collaborative International Dictionary of English

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1.       
   Saltatory , 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