frustum

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Related to Frustrum: Frustum of a Pyramid

frustum

1. Geometry
a. the part of a solid, such as a cone or pyramid, contained between the base and a plane parallel to the base that intersects the solid
b. the part of such a solid contained between two parallel planes intersecting the solid
2. Architect a single drum of a column or a single stone used to construct a pier

frustum

[′frəs·təm]
(mathematics)
The part of a solid between two cutting parallel planes.
References in periodicals archive ?
The General Electric portion of the RVX-2A program were the first and third flights, testing the General Science Century Series of unreinforced phenolic resin for use on the conic frustrum part of the conic sphere design for the Titan II Mark 6 reentry vehicle.
The nose cap was RaD 58D followed by a twenty-six-inch frustrum section of RaD 58B and 100 inches of tape wound Refrasil.
Parasolid Frustrum support for the major UNIX Platforms (HP, SGI, SUN, IBM, DEC) was added to existing support for Windows.