# 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 simplicial map can be defined on the non-degenerate 3-simplex [phi] of C if and only if t obeys the fusion equation in the first diagram of (3.
4) in order to have a 3-simplex with the boundary of [s.
For example, a 0-simplex is a vertex, a 1-simplex a line segment, a 2-simplex a solid triangle, and a 3-simplex a solid tetrahedron.

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