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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 菱面型; 菱形; 菱形六面體

From: Webster's Revised Unabridged Dictionary (1913)

 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) 2.0

      adj : having three-fold symmetry [syn: trigonal]