tetrahedron

(redirected from tetrahedrons)
Also found in: Thesaurus, Encyclopedia.
Related to tetrahedrons: regular tetrahedron
click for a larger image
tetrahedron

tet·ra·he·dron

 (tĕt′rə-hē′drən)
n. pl. tet·ra·he·drons or tet·ra·he·dra (-drə)
A polyhedron with four faces.

[Greek tetraedron, from neuter of tetraedros, four-faced : tetra-, tetra- + -hedros, sided; see -hedron.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tetrahedron

(ˌtɛtrəˈhiːdrən)
n, pl -drons or -dra (-drə)
1. (Mathematics) a solid figure having four plane faces. A regular tetrahedron has faces that are equilateral triangles. See also polyhedron
2. (Mathematics) any object shaped like a tetrahedron
[C16: from New Latin, from Late Greek tetraedron; see tetra-, -hedron]
ˌtetraˈhedral adj
ˌtetraˈhedrally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tet•ra•he•dron

(ˌtɛ trəˈhi drən)

n., pl. -drons, -dra (-drə).
1. a solid contained by four plane faces; a triangular pyramid.
2. any of various objects resembling a tetrahedron.
[1560–70; < Late Greek tetráedron]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

tet·ra·he·dron

(tĕt′rə-hē′drən)
A three-dimensional geometric figure with four triangular faces.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tetrahedron - any polyhedron having four plane facestetrahedron - any polyhedron having four plane faces
polyhedron - a solid figure bounded by plane polygons or faces
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
tetràedre
čtyřstěn
tetraedri
tetraèdretétraèdre
tetraéder
三角錐四面体
tetraeder

tetrahedron

[ˈtetrəˈhiːdrən] N (tetrahedrons, tetrahedra (pl)) [ˌtetrəˈhiːdrə]tetraedro m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

tetrahedron

nTetraeder nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
References in periodicals archive ?
Hence, before the simulation, it is important to find all the neighboring two elements (i.e., two neighboring tetrahedrons which share the common face) efficiently.
Then, the physics rules based on the mass-spring system are applied to the 3D model composed of the divided tetrahedrons for representing natural deformation of objects.
After the search, all duplicates are removed ensuring that only unique tetrahedrons are contained in the databases.
The vertices of the end-effector are treated as the top vertex of the tetrahedron. The space composed of eight ropes is divided into four tetrahedrons based on the tetrahedron lemma [36].
The VE is a symmetrical array of eight tetrahedrons with their bases representing the triangular faces of the VE, all pointing towards the VE's center point.
Minute patterns featuring uniform hemispheres, tetrahedrons, square pyramids, ellipsoids, cylinders and other shapes can be created with micron-level precision.
Students from Year Two and Three built tetrahedrons, while Year Five and Six pupils made more advanced structures - bridges and roof supports.
Five tetrahedrons are selected and the average strain-time relationship of four points of each tetrahedron is shown in Figure 4.
Arepo uses a grid that can reshape itself, filling itself with tetrahedrons of varying size and shape.
The computers also showed that as water approaches minus 48 C (minus 55 F), there is a sharp increase in the proportion of water molecules attached to four others to form tetrahedrons.
The following instructions for creating a dynamic model are provided to illustrate the duality of regular tetrahedrons (Fig.
The final sculpture looked something like a computer-generated image of a mountain with two peaks and faces that were alternately smooth and jagged, depending on whether or not any tetrahedrons were left cantilevered.