octahedron
English
![](../I/m/Octahedron.jpg)
An octahedron
Etymology
From Ancient Greek ὀκτώ (oktṓ, “eight”) + ἕδρα (hédra, “seat”).
Noun
octahedron (plural octahedra or octahedrons)
- (geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.
Related terms
Translations
a polyhedron with eight faces
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