n. The universe or universality of created things; -- so called from the order and harmony displayed in it.n. The theory or description of the universe, as a system displaying order and harmony.n. A genus of composite plants closely related to Bidens, usually with very showy flowers, some with yellow, others with red, scarlet, purple, white, or lilac rays. They are natives of the warmer parts of America, and many species are cultivated. Cosmos bipinnatus and Cosmos diversifolius are among the best-known species; Cosmos caudatus, of the West Indies, is widely naturalized.