Source : Webster's Revised Unabridged Dictionary (1913)

Ungual \Un"gual\, a. [L. unguis a nail, claw, hoof.]
   1. Of or pertaining to a nail, claw, talon, or hoof, or
      resembling one.

   2. Having a nail, claw, or hoof attached; -- said of certain
      bones of the feet.

Source : WordNet®

ungual
     adj : of or relating to a nail or claw or hoof