tetrahedron


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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 ?
The plate is designed as a tetrahedron so it is visible from all sides.
At the meeting, he described the treatment options for AD as the four points of a tetrahedron: anti-inflammatories, antibiotics, antipruritics, and moisturization.
During the fun-filled morning, they got to make their own music and rhythms, make Lego robots move using coding software, create short animations using drawings and objects, omelette making and build a giant tetrahedron.
Conceptualized as 3-sides of a tetrahedron, the model is of significance because it highlights the levels of regulations that RNs, GLPRNs and APRNs are held to.
The interaction between [Na.sup.+] and silicon-oxygen tetrahedron will affect the intercalation of organic cations.
Suppose that there are totally [N.sub.P] SWG pairs defined in tetrahedron pairs and [N.sub.S] single (half) SWGs defined in boundary (including the nonconformal boundaries) tetrahedrons; thus, the impedance matrix in (6) can be expressed as
The shape of M[O.sub.x] is diverse, such as octahedron and tetrahedron. The shape and connection types of M[O.sub.x] are critical to the physical and chemical properties [1-5].
Wensel, "A novel reagent for labelling macromolecules with intensely luminescent lanthanide complexes," Tetrahedron Letters, vol.
Narukawa's Authagraph got around this with a rather clever method; by taking an actual globe and dividing it into 96 triangles, which are then projected into a tetrahedron. That tetrahedron could then be folded out into a rectangle, creating a flattened version of the globe that is more accurate than any projection so far.
Tetrahedron volume structure is a structure in which a volumetric object is divided into regular tetrahedron by adding vertices inside the existing surface mesh model.