| CHILIAHEDRONS | • chiliahedrons n. Plural of chiliahedron. • CHILIAHEDRON n. (Greek) a one-thousand sided solid figure. |
| DODECAHEDRONS | • dodecahedrons n. Plural of dodecahedron. • DODECAHEDRON n. (Greek) a twelve-sided solid figure. |
| HENDECAHEDRON | • hendecahedron n. (Geometry) A solid having eleven plane faces. • HENDECAHEDRON n. a solid figure having 11 plane faces. |
| LEUCITOHEDRON | • LEUCITOHEDRON n. the cubic icositetrahedron, simulated by typical leucite crystals. |
| PROCATHEDRALS | • procathedrals n. Plural of procathedral. • pro-cathedrals n. Plural of pro-cathedral. • PROCATHEDRAL n. a parish church serving as a cathedral. |
| PYRITOHEDRONS | • pyritohedrons n. Plural of pyritohedron. • PYRITOHEDRON n. a pentagonal dodecahedron. |
| RHOMBOHEDRONS | • rhombohedrons n. Plural of rhombohedron. • RHOMBOHEDRON n. a parallelepiped whose faces are rhombuses. |
| SCALENOHEDRON | • scalenohedron n. (Geometry, mineralogy, crystallography) A polyhedron having twelve sides, each in the form of a scalene… • SCALENOHEDRON n. a hemihedral form bounded in the hexagonal system by twelve, in the tetragonal by eight, faces, each a scalene triangle. |
| TETARTOHEDRAL | • tetartohedral adj. (Crystallography) isometric and tetragonal, but having one fourth of the number of planes required for… • TETARTOHEDRAL adj. having one fourth the number of planes required by complete symmetry. |
| TETRAHEDRALLY | • tetrahedrally adv. In a tetrahedral manner; arranged in tetrahedrons. • TETRAHEDRAL adv. of a solid with four sides. |
| TETRAHEDRITES | • tetrahedrites n. Plural of tetrahedrite. • TETRAHEDRITE n. native sulphide of antimony, iron, and copper, forming a series with tennantite and typically occurring as tetrahedral crystals. |
| TRAPEZOHEDRAL | • trapezohedral adj. Of, pertaining to, or resembling a trapezohedron. • TRAPEZOHEDRAL adj. having the shape of a trapezohedron. |
| TRAPEZOHEDRON | • trapezohedron n. (Geometry, crystallography) Any of a class of polyhedra that have kite-shaped faces and are dual polyhedra… • trapezohedron n. (Crystallography) A deltoidal icositetrahedron. • TRAPEZOHEDRON n. a crystalline form whose faces are trapeziums. |
| TRISOCTAHEDRA | • trisoctahedra n. Plural of trisoctahedron. • TRISOCTAHEDRON n. a solid figure having 24 congruent faces and an octahedron as a base. |