rhombohedron
/ˌrɑmboʊˈhidrən/
noun
- A solid figure whose six faces are all rhombuses; a type of prism with rhombus-shaped sides.
- A rhombohedron is a special kind of parallelepiped.
- Each rhombohedron in the crystal had equal edges but slanted angles.
- The child built a rhombohedron out of clay for the school project.