microcosm

A small, representative system having analogies to a larger system in constitution, configuration, or development.

A little world or cosmos; the world in miniature; something representing or assumed to represent the principle of universality: often applied to man regarded as an epitome, physically and morally, of the universe or great world (the macrocosm).

A little community or society.

A little world; a miniature universe. Hence (so called by Paracelsus), a man, as a supposed epitome of the exterior universe or great world. Opposed to macrocosm.

A relatively small object or system considered as representative of a larger system of which it is part, exhibiting many features of the complete system.

a miniature model of something