Source : Webster's Revised Unabridged Dictionary (1913)

Fossorial \Fos*so"ri*al\, a. [L. fossor a digger.]
   Fitted for digging, adapted for burrowing or digging; as, a
   fossorial foot; a fossorial animal.

Source : WordNet®

fossorial
     adj : (of limbs and feet) adapted for digging [ant: {cursorial}]