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.
hot dog. A person who performs showy, often dangerous stunts, especially but not exclusively in sports; also, a showoff. For example, He was a shameless hot dog on the tennis court, smashing every ball, or She was a hot dog behind the wheel, screeching her wheels at every turn. The relation of this term to the edible hot dog is unknown. 2. Also, hot diggety dog; hot diggety.