What does Belly button mean?

Belly button meaning in Medical Dictionary

The navel or umbilicus; the previous site of attachment regarding the umbilical cable.


Belly button meaning in Etymology Dictionary

"navel," 1877, colloquial, from belly (n.) + option (n.). Also bellybutton, belly-button.


Belly button meaning in General Dictionary

a scar in which the umbilical cord had been affixed