plural frustums or frusta
ˈfrə-stə 
: the basal part of a solid cone or pyramid formed by cutting off the top by a plane parallel to the base
also
: the part of a solid intersected between two usually parallel planes
Examples of frustum in a Sentence
Recent Examples on the Web
The case of the 24-Seconde Architecture is shaped like a convex conical frustum.
—
Carol Besler, Robb Report, 5 July 2022
The EmDrive test device used by White and his colleagues was a copper frustum—a cone with its top lopped off—that was just under a foot long.
—Daniel Oberhaus, Wired, 8 May 2020
Carol Besler, Robb Report, 5 July 2022
The EmDrive test device used by White and his colleagues was a copper frustum—a cone with its top lopped off—that was just under a foot long.
—Daniel Oberhaus, Wired, 8 May 2020
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'frustum.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Frustum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frustum. Accessed 19 Apr. 2024.
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