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.
booster - a person who backs a politician or a team etc.; all their supporters came out for the game; they are friends of the library. admirer, protagonist, supporter, champion, friend. advocate, advocator, exponent, proponent - a person who pleads for a cause or propounds an idea.