Hypertext Webster Gateway: "Rhombohedral"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Rhombohedral \Rhom`bo*he"dral\, a. (Geom. & Crystallog.)
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.
{Rhombohedral iron ore} (Min.) See {Hematite}.
{Rhombohedral system} (Crystallog.), a division of the
hexagonal system embracing the rhombohedron,
scalenohedron, etc.
From WordNet (r) 1.7 (wn)
rhombohedral
adj : (crystallography) having three-fold symmetry [syn: {trigonal}]
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