Webster's Revised Unabridged Dictionary · 1913

Ungula

Ungula , noun

[Latin, a claw, hoof, from unguis a nail, claw, hoof.]

1.
A hoof, claw, or talon.
2.
(Geometry) A section or part of a cylinder, cone, or other solid of revolution, cut off by a plane oblique to the base; -- so called from its resemblance to the hoof of a horse.
3.
(Botany) Same as Unguis, 3.
Collocations (1)
Spherical ungula (Geometry) , a part of a sphere bounded by two planes intersecting in a diameter and by a line of the surface of the sphere.