tetrahedron

[ te-truh-hee-druhn ]

Phonetic (Standard)IPA

noun

, plural tet·ra·he·drons, tet·ra·he·dra [te-tr, uh, -, hee, -dr, uh].

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.

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

tetrahedron

/ tĕt′rə-hē′drən /

, Plural tetrahedrons

1560–70; tetra- + -hedron, modeled on Late Greek tetráedron, noun use of neuter of tetráedros four-sided

C16: from New Latin, from Late Greek tetraedron; see tetra- , -hedron

Kailas turns a sharp edge to the north, and from here the peak resembles a tetrahedron more than ever.

The most simple of all would have been the tetrahedron, or pyramid built upon a triangular base.

At the vertices of a regular tetrahedron may be found such points.

Above the tetrahedron is a balloon-shaped figure, apparently drawn into shape by the attraction of the tetrahedron.

This puzzle concerns the painting of the four sides of a tetrahedron, or triangular pyramid.

Browse