1.111: Voronoi domain
The Voronoi domain (or 'cell', or 'region') is the name given in mathematics to the Wigner-Seitz cell . Voronoi domains are in the form of polyhedra and are classified according to their topological properties ; one distinguishes five types of Voronoi polyhedra (see Section 9.1.6 of International Tables of Crystallography, Volume A .