# 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.]

## 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]

## 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]

## tet·ra·he·dron

(tĕt′rə-hē′drən)
A three-dimensional geometric figure with four triangular faces.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 tetrahedron - any polyhedron having four plane facespolyhedron - a solid figure bounded by plane polygons or faces
Translations
tetràedre
čtyřstěn
tetraedri
tetraèdretétraèdre
tetraéder

tetraeder

## tetrahedron

[ˈtetrəˈhiːdrən] N (tetrahedrons, tetrahedra (pl)) [ˌtetrəˈhiːdrə]

## tetrahedron

nTetraeder nt
References in periodicals archive ?
The plate is designed as a tetrahedron so it is visible from all sides.
quantity: 850.000 notebooks packed with wrapping paper and with an indication of the contents of the top and bottom or with plastic transparent in parcels of 100 pieces with a tuft and bearing on the top and bottom of the package protective cardboard or in 100-piece cartons with the contents above and below, in such a way each time to ensure in each case the unintentional distortion of the tetrahedron at its delivery.
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.

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