Dictionary.com
definitions
  • synonyms

frustum

[fruhs-tuh m]
See more synonyms on Thesaurus.com
noun, plural frus·tums, frus·ta [fruhs-tuh] /ˈfrʌs tə/. Geometry.
  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 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for frusta

Historical Examples

  • Near the temple are several blocks of stones, some fluted Doric frusta, and a capital of small dimensions.

    Ruins of Ancient Cities (Vol. II of II)

    Charles Bucke

  • In a journal called the Frusta letteraria he took to lashing without mercy the works which were then being published in Italy.


British Dictionary definitions for frusta

frustum

noun plural -tums or -ta (-tə)
  1. geometry
    1. 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
    2. 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

Word Origin

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

Word Origin and History for frusta

frustum

n.

1650s, from Latin frustum "piece broken off," from PIE *bhrus-to-, from root *bhreu- "to cut, break up."

Online Etymology Dictionary, © 2010 Douglas Harper