Rhombohedral
Rhombohedral , adjective
(Geometry & Crystallography) Related to the rhombohedron; presenting the form of a rhombohedron, or a form derivable from a rhombohedron; relating to a system of forms including the rhombohedron and scalenohedron.
Collocations (2)
Rhombohedral system (Crystallography) , a division of the hexagonal system embracing the rhombohedron, scalenohedron, etc.