rhombohedron(redirected from rhombohedra)
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Related to rhombohedra: rhombohedron, Rhombohedral system
a six-sided prism whose sides are parallelograms
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.
A trigonal crystal form that is a parallelepiped, the six identical faces being rhombs. Also known as rhomb.
A prism with six parallelogram faces.