umbilical
Pronunciation: /ʌmˈbɪlɪk(ə)l, ˌʌmbɪˈlʌɪk(ə)l/
adjective
- relating to or affecting the navel or umbilical cord: the umbilical artery
- extremely close; inseparable: the umbilical link between commerce and international rugby
- (of a pipe or cable) connecting someone or something to a source of essential supplies: a tractor-mounted unit in the field is fed through an umbilical hose
noun
- short for umbilical cord.

Origin:
mid 16th century: from French ombilical, or based on Latin umbilicus (see umbilicus)