a 3-dimensional geometric arrangement of the atoms or molecules or ions composing a crystal
a regular three-dimensional distribution (cubic, rhombic, etc
a very exact organization of atoms
The arrangement of atoms in a crystal, giving each crystal its distinct shape. See also crystal structure.
a three-dimensional arrangement of particles made up of unit cells. Crystalline solids comprise particles in an orderly, geometric, repeating pattern that is the crystal structure, or lattice.
An infinite regular periodic set of points in space on which the atoms, molecules, or ions of an ideal crystal are imagined to be located. No real crystal is exactly congruent with its crystal lattice.