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cosmetology the study of cosmetics or the profession of applying them.
cosmic of or relating to the universe or cosmos. [3 definitions]
cosmic dust very fine particles of matter found in interplanetary space.
cosmic noise interference from radio waves beyond the earth; galactic noise.
cosmic rays streams of high-energy charged atomic nuclei or other particles that enter the earth's atmosphere from outer space.
cosmo- world; universe.
cosmochemistry the science concerned with the distribution of chemical substances in the universe.
cosmogony the study or a theory of the beginnings, structure, and evolution of the universe.
cosmography the science, or a particular description, of the physical arrangement of the universe and the earth.
cosmology the branch of philosophy concerned with the nature, origin, and development of the universe. [2 definitions]
cosmonaut a space traveler or astronaut, esp. one from Russia.
cosmopolitan of, drawn from, or common to all the world or all the peoples of the world. [3 definitions]
cosmopolite a cosmopolitan.
cosmos the totality of material existence, esp. considered as a unified, orderly whole; universe. [4 definitions]
cosponsor one who jointly sponsors an event, legislation, presentation, or the like. [2 definitions]
cosponsorship combined form of sponsorship.
Cossack a member of any of various tribes of southwestern Russia, many of whom were renowned horsemen in the czars' armies.
cosset to treat indulgently or as a pet; pamper. [2 definitions]
cost the amount charged or given in payment for services or goods; price. [6 definitions]
cost accounting an accounting system in which all costs of production and distribution are itemized and allocated, as to various products.
costal of or relating to the ribs or the rib area.