rhombohedron
/ˌrɒmbəʊˈhiːdrən/noun
(pl. rhombohedra /-drə/ 或rhombohedrons)
1- a solid figure whose faces are six equal rhombuses菱形六面体。
1.1
- a crystal or other solid object of this form菱形晶体; 菱形六面体。
词源
mid 19th cent.: from RHOMBUS + -HEDRON, on the pattern of words such as polyhedron.