The Collaborative International Dictionary of English v.0.48:
Ungual \Un"gual\, a. [L. unguis a nail, claw, hoof.] [1913 Webster] 1. Of or pertaining to a nail, claw, talon, or hoof, or resembling one. [1913 Webster] 2. Having a nail, claw, or hoof attached; -- said of certain bones of the feet. [1913 Webster]WordNet (r) 3.0 (2006):
ungual adj 1: of or relating to a nail or claw or hoof