/ Dictionary / Index C Caelian: Meaning and Definition of Find definitions for: Cae•li•an Pronunciation: (sē'lē-un), [key] — n. the southeastern hill of the seven hills of ancient Rome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cædmon Caelum Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language