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 • Syn: navel, bellybutton, belly button, omphalos, omphalus • Derivationally related forms: umbilical • Hypernyms: point • Part Holonyms: abdomen, venter, stomach, belly