Crystall.
any of the six main classifications of crystals and of crystal lattices according to their symmetry: isometric, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic.
Crystall.
any of the six main classifications of crystals and of crystal lattices according to their symmetry: isometric, hexagonal, tetragonal, orthorhombic, monoclinic, and triclinic.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012