A pile of navel oranges.
navel orange definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a seedless orange having at its apex a depression like a navel, containing a small, undeveloped secondary fruit
navel orange definition by American Heritage Dictionary
A sweet, usually seedless orange having at its apex a navellike formation enclosing an underdeveloped fruit.