/ Dictionary / Index C cosmic: Meaning and Definition of Find definitions for: cos•mic Pronunciation: (koz'mik), [key] — adj. of or pertaining to the cosmos: cosmic laws. characteristic of the cosmos or its phenomena: cosmic events. immeasurably extended in time and space; vast. forming a part of the material universe, esp. outside of the earth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cosmic (Thesaurus) cosmetology cosmic background radiation Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language