spherical cone

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spherical cone

[¦sfir·ə·kəl ′kōn]
(mathematics)
A solid consisting of the cap and cone formed by the intersection of a plane with a sphere, the cone extending from the plane to the center of the sphere and the cap extending from the plane to the surface of the sphere.
The surface of this solid.
References in periodicals archive ?
Then M is semisymmetric if and only if M is minimal submanifold (in which case M is (n - 2)-ruled), or M is a round hypercone in some totally geodesic subspace [E.
So, by [8], M is a round hypercone in some totally geodesic subspace [E.
Having this process, the light hypercone inclines with the time line to the spatial section.