nounWord forms: plural -bilici (-ˈbɪlɪˌsaɪ, -bɪˈlaɪsaɪ)1. biology a hollow or navel-like structure, such as the cavity at the base of a gastropod shell
2. anatomy a technical name for the navel
Word origin
C18: from Latin: navel, centre; compare Latin
umbō shield boss, Greek
omphalos navel