omphalos

Noun

• a scar where the umbilical cord was attached
  • you were not supposed to show your navel on television
    
  • they argued whether or not Adam had a navel
    
  • she had a tattoo just above her bellybutton
    

Related words

• Synonyms: 
  navel , umbilicus , bellybutton , belly button , omphalus