noun
- plural of rhombohedron; three-dimensional geometric shapes with six congruent rhombic faces
Usage: geometry; crystallography
Examples
- The crystal structure contained several rhombohedra arranged in a regular pattern.
- Students learned to identify rhombohedra among other polyhedra in geometry class.
- The mineral specimens displayed perfect rhombohedra with sharp edges.
- Calcite crystals often form natural rhombohedra.
- The architect incorporated rhombohedra into the building’s geometric design.
- Under the microscope, the salt crystals appeared as tiny rhombohedra.