Breadcrumb Home > Dictionary > Index C cosmonautics: Meaning and Definition of Find definitions for: cos•mo•nau•tics Pronunciation: (koz"mu-nô'tiks, -not'iks), [key] — n. (used with a sing. v.) astronautics, esp. as applied to space flight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cosmonaut cosmopolis TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: oungurk Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language