tetrahedron
Geometry. a solid contained by four plane faces; a triangular pyramid.
any of various objects resembling a tetrahedron in the distribution of its faces or apexes.
Origin of tetrahedron
1Words Nearby tetrahedron
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use tetrahedron in a sentence
Furthermore, in 1980 Hans Debrunner showed that any tetrahedron that tiles space must have a Dehn invariant of 0 — the same as a cube.
Undergraduates Hunt for Special Tetrahedra That Fit Together | Kevin Hartnett | February 9, 2021 | Quanta MagazineThe tetrahedron is the simplest three-dimensional shape with flat sides.
Tetrahedron Solutions Finally Proved Decades After Computer Search | Kevin Hartnett | February 2, 2021 | Quanta MagazineIt establishes that there are exactly 59 isolated examples plus two infinite families of tetrahedra that meet this condition.
Tetrahedron Solutions Finally Proved Decades After Computer Search | Kevin Hartnett | February 2, 2021 | Quanta MagazineOn the cube, tetrahedron, octahedron and icosahedron, any straight path that starts and ends on the same vertex must pass through some other vertex along the way.
Imagine starting from a vertex of a tetrahedron and heading out on a straight path along a face.
Kailas turns a sharp edge to the north, and from here the peak resembles a tetrahedron more than ever.
Trans-Himalaya, Vol. 2 (of 2) | Sven HedinThe most simple of all would have been the tetrahedron, or pyramid built upon a triangular base.
A history of art in ancient Egypt, Vol. I (of 2) | Georges PerrotAt the vertices of a regular tetrahedron may be found such points.
The Mystery of Space | Robert T. BrowneAbove the tetrahedron is a balloon-shaped figure, apparently drawn into shape by the attraction of the tetrahedron.
Occult Chemistry | Annie Besant and Charles W. LeadbeaterThis puzzle concerns the painting of the four sides of a tetrahedron, or triangular pyramid.
Amusements in Mathematics | Henry Ernest Dudeney
British Dictionary definitions for tetrahedron
/ (ˌtɛtrəˈhiːdrən) /
a solid figure having four plane faces. A regular tetrahedron has faces that are equilateral triangles: See also polyhedron
any object shaped like a tetrahedron
Origin of tetrahedron
1Derived forms of tetrahedron
- tetrahedral, adjective
- tetrahedrally, adverb
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
Scientific definitions for tetrahedron
[ tĕt′rə-hē′drən ]
A polyhedron having four faces.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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