of, pertaining to, or characteristic of an umbilicus or umbilical cord.

joined together by or as if by an umbilical cord; heavily dependent in a close relationship.

adjacent to or located near the navel; central to the abdomen

the umbilical region.

serving as or containing a conduit through which power is transferred, esp. to a unit that will be or is designed to be ultimately self-sufficient or independent

an umbilical cable for launching a rocket; an umbilical plug for starting jet engines.

umbilical cord.