Source : Webster's Revised Unabridged Dictionary (1913)

Saltigrade \Sal"ti*grade\, n. (Zo["o]l.)
   One of the {Saltigrad[ae]}, a tribe of spiders which leap to
   seize their prey.

Saltigrade \Sal"ti*grade\, a. [L. saltus a leap + gradi to walk,
   go: cf. F. saltigrade.] (Zo["o]l.)
   Having feet or legs formed for leaping.