egységcellán
In crystallography and solid-state physics, the term "egységcellán" refers to the smallest repeating unit of a crystal lattice. This unit, when translated in three dimensions, can generate the entire crystal structure. It is also known as the primitive cell or unit cell. The shape and dimensions of the unit cell are defined by its lattice parameters, which include the lengths of the edges and the angles between them.
The concept of the unit cell is fundamental to understanding the macroscopic properties of crystalline materials.
While the primitive unit cell is the smallest possible repeating unit, often a larger, more symmetrical unit