omphaloses

noun
  1. Plural of omphalos; the navel or a navel-like depression or protuberance.
  2. Usage: Formal or technical usage; Often used in anatomy or classical contexts
  3. In ancient Greek religion, sacred stones believed to mark the center of the world, especially the one at Delphi.
  4. Usage: Historical and mythological context; Capitalized when referring to the specific stone at Delphi

Examples