a seedless variety of orange having at the apex a navellike formation containing a small secondary fruit.
Origin of navel orange
First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a sweet orange that is usually seedless and has at its apex a navel-like depression enclosing an underdeveloped secondary fruit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012