umbilical cord

noun5

1. •
   The flexible structure connecting a foetus with the placenta; it transports nourishment to the foetus and removes waste.
2. •
   Synonym of funiculus.
3. •
   (figurative) An overdependence on or overattachment to support, especially from one's parents or guardians.
4. •
   The line that supplies an astronaut with oxygen and communications when outside a spacecraft.
5. •
   Any of the various lines connecting a rocket to its launch pad before liftoff.