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frustum - 3 dictionary results
frus⋅tum
[fruhs-tuh
m] 
–noun, plural -tums, -ta [-tuh] . Geometry.
[-tuh] . 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:
1650–60; < L: piece, bit; prob. akin to OIr brúid (he) breaks, OE brȳsan to crush
1650–60; < L: piece, bit; prob. akin to OIr brúid (he) breaks, OE brȳsan to crush
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To frustum
frus·tum (frŭs'təm)  (click for larger image in new window) 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.] |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Frustum
Frus"tum\, n.; pl. L. Frusta, E. Frustums. [L. 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 either parallel or inclined to each other. 2. (Arch.) One of the drums of the shaft of a column.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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