Definitions for "Octahedron"
A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.
A basic structural systems with 8 traingular faces and 4 triangles around each of its 6 vertices.
Eight sided polyhedron; all sides are equidimensional and bisect at at the same angle. Minerals shaped as octahedrons belong to the isometric system.
Triangulated System of 8 Equal Areas, 6 Vertices & 12 Edges