umbilicus /um-bilˈi-kəs or um-bi-līˈkəs/ noun- The navel
- A depression at the axial base of a spiral shell
- A small depression
ORIGIN: L umbilīcus the navel; Gr omphalos umbilical /-bilˈ (sometimes -bi-līˈ)/ adjective Relating to the umbilicus or the umbilical cord umbilˈicate adjective - Navel-like
- Having a depression like a navel
umbilicāˈtion noun umbilical cord noun - A long flexible tube connecting the fetus to the placenta, the navel-string
- An electrical cable or other servicing line attached to a rocket vehicle or spacecraft during preparations for launch
- The lifeline outside a vehicle in space by which astronauts receive air and communicate with the vehicle
- Any similar connection of fundamental importance
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