rhombohedron

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Related to rhombohedra: rhombohedron, Rhombohedral system

rhombohedron

a six-sided prism whose sides are parallelograms

Rhombohedron

 

a parallelepiped (usually oblique) whose faces are equal rhombuses. For at least two vertices all the adjacent angles must be equal. A parallelepiped is a rhombohedron if and only if it has an axis of three-fold symmetry.

rhombohedron

[¦räm·bō¦hē·drən]
(crystallography)
A trigonal crystal form that is a parallelepiped, the six identical faces being rhombs. Also known as rhomb.
(mathematics)
A prism with six parallelogram faces.