/ Dictionary / Index C Cernan: Meaning and Definition of Find definitions for: Cer•nan Pronunciation: (sûr'nun), [key] born 1934, U.S. astronaut. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. CERN Cernăuţi Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language