Dictionary
om•pha•los
Pronunciation: (om'fu-lus), [key]—
n.
1. the navel; umbilicus.
2. the central point.
3. Gk. Antiq.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.