| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
A representation of something on a much smaller scale. Microcosm means “small world,” and in the thought of the Renaissance, it was applied specifically to human beings, who were considered to be small-scale models of the universe, with all its variety and contradiction. (Compare macrocosm.)