Definition of "omphalos" [‖Om•pha•los]

• The navel. (noun)
• A central part; a focal point. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "In early religion it was "a profound symbol of cosmic fertility," says "Sexual Personae" author Camille Paglia, humanities professor at Philadelphia's University of the Arts. "Delphi, where the most famous oracle of antiquity sat, was called the omphalos, or navel of the world.""
• "The Greeks'"omphalos," the navel of the world, isn't confined to Delphi."
• "The Greeks' "omphalos," the navel of the world, isn't confined to Delphi."