1. a rounded knotty depression in the center of a person's belly caused by the detachment of the umbilical cord after birth; the umbilicus.Similarinformal:belly buttontummy buttontechnical:umbilicus
Word OriginOld Englishnafela, of Germanic origin; related to Dutch navel and German Nabel, from an Indo-European root shared by Latin umbo ‘boss of a shield’, umbilicus ‘navel’, and Greek omphalos ‘boss, navel’. Compare with nave2.