
1) Part
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https://www.crosswordclues.com/clue/frustum

1) Solid
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https://www.crosswordclues.com/clue/frustum

The term is commonly used in computer graphics to describe the three-dimensional region which is visible on the screen, the `viewing frustum`, which is formed by a clipped pyramid; in particular, frustum culling is a method of hidden surface determination. In the aerospace industry, frustum is the common term for the fairing between two stages o.....
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http://en.wikipedia.org/wiki/Frustum

• (n.) The part of a solid next the base, formed by cutting off the, top; or the part of any solid, as of a cone, pyramid, etc., between two planes, which may be either parallel or inclined to each other. • (n.) One of the drums of the shaft of a column.
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http://thinkexist.com/dictionary/meaning/frustum/
Frus'tum noun ;
plural Latin
Frusta , English
Frustums . [ Latin
fruslum piece, bit.]
1. (Geom.) The part of a solid next the base, formed by cutting off the, top; or the part of any solid, as of a cone, pyramid, etc., between two planes, which may be e...
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http://www.encyclo.co.uk/webster/F/82

In geometry, the frustum is the part of a solid next to the base, left by cutting off the top portion by a plane parallel to the base; or the part of any solid between two planes, which may be either parallel or inclined to each other, as the frustum of a cone, of a pyramid, or of a sphere, which latter is any part comprised between two parallel ci...
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http://www.probertencyclopaedia.com/browse/GF.HTM

In architecture a frustum is one of the drums of the shaft of a column.
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http://www.probertencyclopaedia.com/browse/TF.HTM

[
n] - the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed
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http://www.webdictionary.co.uk/definition.php?query=frustum

In geometry, a `slice` taken out of a solid figure by a pair of parallel planes. A conical frustum, for example, resembles a cone with the top cut off. The volume and area of a frustum are calculated by subtracting the volume or area of the `missing` piece from those of the whole ...
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https://www.encyclo.co.uk/local/21221

the part of a conical solid left after cutting off a top portion with a plane parallel to the base. · the part of a solid, as a cone or pyramid, between two usually parallel cutting planes.
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https://www.infoplease.com/dictionary/frustum
No exact match found.