tetrahedron
Americannoun
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Geometry. a solid contained by four plane faces; a triangular pyramid.
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any of various objects resembling a tetrahedron in the distribution of its faces or apexes.
noun
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a solid figure having four plane faces. A regular tetrahedron has faces that are equilateral triangles See also polyhedron
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any object shaped like a tetrahedron
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of tetrahedron
1560–70; tetra- + -hedron, modeled on Late Greek tetráedron, noun use of neuter of tetráedros four-sided
Vocabulary lists containing tetrahedron
UCPS 6th Grade Roots List #5
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Organic Chemistry
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Onion’s make-believe owner, Bryce P. Tetraeder, Global Tetrahedron CEO, penned the explainer about why he chose to buy Jones’ reprehensible site.
From Los Angeles Times • Nov. 16, 2024
The real-life Global Tetrahedron is backed by Jeff Lawson, a co-founder and former chief executive of the technology communications company Twilio, according to three people familiar with the matter as well as corporate filings.
From New York Times • Apr. 25, 2024
The name Global Tetrahedron is, in true Onion fashion, a winking reference to a sinister fictional company featured in the book “Our Dumb Century,” which was written by The Onion’s staff and published in 1999.
From New York Times • Apr. 25, 2024
These are as follows:— The Tetrahedron, having four equilateral triangles as faces.
From Bygone Beliefs: being a series of excursions in the byways of thought by Redgrove, H. Stanley (Herbert Stanley)
Tetrahedron, tet-ra-hē′dron, n. a solid figure enclosed by four bases or triangles.—adjs.
From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
