frustum(redirected from frustums)
Also found in: Thesaurus, Encyclopedia.
Related to frustums: Frustum of a Cone
frustum of a pyramid
n. pl. frus·tums or frus·ta (-tə) Mathematics
The part of a solid, such as a cone or pyramid, between two parallel planes cutting the solid, especially the section between the base and a plane parallel to the base.
[Latin frūstum, piece broken off.]
n, pl -tums or -ta (-tə)
1. (Mathematics) 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. (Architecture) architect a single drum of a column or a single stone used to construct a pier
[C17: from Latin: piece; probably related to Old English brӯsan to crush, bruise]
n., pl. -tums, -ta (-tə).
1. the part of a conical solid left after cutting off a top portion with a plane parallel to the base.
2. the part of a solid, as a cone or pyramid, between two usu. parallel cutting planes.
[1650–60; < Latin: piece, bit]
Switch to new thesaurus
|Noun||1.||frustum - a truncated cone or pyramid; 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|
solid - a three-dimensional shape
truncated pyramid - a frustum formed from a pyramid
truncated cone - a frustum formed from a cone