What is the meaning of Umbilical_cord?

The flexible structure connecting a foetus with the placenta; it transports nourishment to the foetus and removes waste.

The line that supplies an astronaut with oxygen and communications when outside a spacecraft.

Any of the various lines connecting a rocket to its launch pad before liftoff.

An overdependence on, or overattachment to, one's parents or guardians.

Source: wiktionary.org