frustum

[ fruhs-tuhm ]

/ ˈfrʌs təm /

noun, plural frus·tums, frus·ta [fruhs-tuh]. /ˈfrʌs tə/. Geometry.

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.

Origin of frustum

1650–60; <Latin: piece, bit; probably akin to Old Irish brúid (he) breaks, Old English brȳsan to crush

Words nearby frustum

frustrate, frustrated, frustration, frustule, frustulum, frustum, frutescent, fruticose, frwy., fry, frybread

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for frustum

A stick of timber is in the shape of the frustum of a square pyramid, the lower base being 22 in.
The Psychology of Arithmetic|Edward L. Thorndike
The lodge, therefore, was not a perfect cone, but the frustum of one; and in this it differed from the lodge of the Comanches.
The White Chief|Mayne Reid
Then follows, in most textbooks, a theorem relating to the volume of a frustum.
The Teaching of Geometry|David Eugene Smith
If the upper base is equal to the lower base, the frustum becomes a cylinder, and still the proposition remains true.
The Teaching of Geometry|David Eugene Smith

When they had reached the frustum's base, Urim descended and, in turn, presented various members of his retinue.
Warrior of the Dawn|Howard Carleton Browne

British Dictionary definitions for frustum

frustum

/ (ˈfrʌstəm) /

noun plural -tums or -ta (-tə)

geometry

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
the part of such a solid contained between two parallel planes intersecting the solid

architect a single drum of a column or a single stone used to construct a pier

Word Origin for frustum

C17: from Latin: piece; probably related to Old English brӯsan to crush, bruise

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

单词	frustum
释义	frustum [ fruhs-tuhm ] / ˈfrʌs təm / noun, plural frus·tums, frus·ta [fruhs-tuh]. /ˈfrʌs tə/. Geometry. 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. Origin of frustum 1650–60; <Latin: piece, bit; probably akin to Old Irish brúid (he) breaks, Old English brȳsan to crush Words nearby frustum frustrate, frustrated, frustration, frustule, frustulum, frustum, frutescent, fruticose, frwy., fry, frybread Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for frustum A stick of timber is in the shape of the frustum of a square pyramid, the lower base being 22 in. The Psychology of Arithmetic\|Edward L. Thorndike The lodge, therefore, was not a perfect cone, but the frustum of one; and in this it differed from the lodge of the Comanches. The White Chief\|Mayne Reid Then follows, in most textbooks, a theorem relating to the volume of a frustum. The Teaching of Geometry\|David Eugene Smith If the upper base is equal to the lower base, the frustum becomes a cylinder, and still the proposition remains true. The Teaching of Geometry\|David Eugene Smith When they had reached the frustum's base, Urim descended and, in turn, presented various members of his retinue. Warrior of the Dawn\|Howard Carleton Browne British Dictionary definitions for frustum frustum / (ˈfrʌstəm) / noun plural -tums or -ta (-tə) geometry 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 the part of such a solid contained between two parallel planes intersecting the solid architect a single drum of a column or a single stone used to construct a pier Word Origin for frustum C17: from Latin: piece; probably related to Old English brӯsan to crush, bruise Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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