These objects move about through the lattice by one of several different types of diffusion, but basically they can jump from point to point through the crystalline structure into areas of lower concentration.
Definition of mascot. : a person, animal, or object adopted by a group as a symbolic figure especially to bring them good luck the team had a mountain lion as their mascot.
Definition of lion for Students. : a large meat-eating animal of the cat family that has a brownish buff coat, a tufted tail, and in the male a shaggy mane and that lives in Africa and southern Asia.