Webster’s Revised Unabridged Dictionary · 1913
Unguis
Un′guis, n.; pl. Ungues (#). [L., nail, claw, or hoof.] 1. The nail, claw, talon, or hoof of a finger, toe, or other appendage.
2. (Zoöl.) One of the terminal hooks on the foot of an insect.
3. (Bot.) The slender base of a petal in some flowers; a claw; called also ungula.