/ Dictionary / Index O omphalos: Meaning and Definition of Find definitions for: om•pha•los Pronunciation: (om'fu-lus), [key] — n. the navel; umbilicus. the central point. a stone in the temple of Apollo at Delphi, thought to mark the center of the earth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omphalos (Thesaurus) omphacite omphaloskepsis Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language