Ungula, n. [L., a claw, hoof, from unguis a nail, claw, hoof.].
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A hoof, claw, or talon. [1913 Webster]
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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. [1913 Webster]
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Same as
Unguis, 3. [
1913 Webster]
Spherical ungula (Geom.), a part of a sphere bounded by two planes intersecting in a diameter and by a line of the surface of the sphere.