1. 5 synonyms for Bellybutton: belly button, navel, omphalos, omphalus, umbilicus

2. Cronus and the Omphalos stone, Athenian red-figure pelike C5th B.C., Metropolitan Museum of Art

3. Anomphalous Meaning: "without a navel," 1742, from Latinized compound of Greek an- "without" (see an- (1)) + omphalos "navel"… See definitions of Anomphalous.

4. Anomphalous was commonly used to describe “Medieval pictures” that showed depictions of Adam and Eve that needed no Gossean omphalos hypothesis by virtue of being depicted as “equally smooth bellied.”