| Answer | Crossword Clue |
|---|---|
| trapezohedra | crystal form having all faces trapeziums |
| trapezohedron | a crystalline form whose faces are trapeziums |
| trapezohedrons | TRAPEZOHEDRON, a crystalline form whose faces are trapeziums |
| trapezohedra | TRAPEZOHEDRON, a crystalline form whose faces are trapeziums |
| hemihedral | of a crystal or crystal class, having half of the maximum number of faces or symmetry planes possible for a given crystal system |
