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octahedron
(redirected from octahedra)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
oc·ta·he·dron  (kt-hdrn)
n. pl. oc·ta·he·drons or oc·ta·he·dra (-dr)
A polyhedron with eight faces.
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octahedron

octahedron [ˌɒktəˈhiːdrən]
n pl -drons, -dra [-drə]
(Mathematics) a solid figure having eight plane faces

octahedron  (kt-hdrn)
Plural octahedrons or octahedra
A polyhedron that has eight faces.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.octahedron - any polyhedron having eight plane facesoctahedron - any polyhedron having eight plane faces
polyhedron - a solid figure bounded by plane polygons or faces
Translations
octahedron [ˈɒktəˈhiːdrən] N (octahedrons or octahedra (pl)) [ˈɒktəˈhiːdrə]octaedro m
octahedron
nOktaeder m, → Achtflächner m


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Unlike basic units of silicon oxide and other metal oxides in widely used porous crystalline materials, the germanium-oxide units form secondary structures that contain six tetrahedra and four octahedra.
The elementary sheet of talc is composed of a layer of magnesium-oxygen/hydroxyl octahedra, sandwiched between two layers of tetrahedral silica.
 
 
 
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