I. ˌəm-ˈbi-li-kəl, Britain also ˌəm-bə-ˈlī-kəl adjective
Date: 1541
1. : of, relating to, or used at the navel
2. : of or relating to the central region of the abdomen
3. : being a necessary or nurturing link or connection
the town's umbilical rail line
II. noun
Date: 1774
: umbilical cord 2