OCTAHEDRON


Meaning of OCTAHEDRON in English

n. (pl. octahedrons or octahedra)

1. a solid figure contained by eight (esp. triangular) plane faces.

2 a body, esp. a crystal, in the form of a regular octahedron.

Phrases and idioms:

regular octahedron an octahedron contained by equal and equilateral triangles.

Derivatives:

octahedral adj.

Etymology: Gk oktaedron (as OCTA-, -HEDRON)

Oxford English vocab.      Оксфордский английский словарь.