/
ʌmˈbɪlɪkəs,
ˌʌmbɪˈlʌɪkəs/
n.
(pl. umbilici
/-sʌɪ/
or umbilicuses)
- Anatomy the navel.
- Zoology a central depression or hole in the whorl of some gastropod molluscs and many ammonites.
- Zoology a hole at each end of the hollow shaft of a feather.
Etymology
C17: from L.: rel. to Gk omphalos, also to navel.
