umbilical vs funiculus

umbilical and funiculus both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbilical	Yes	Yes	No	No
funiculus	Yes	No	No	No

As nouns, funiculus is a hypernym of umbilical; that is, funiculus is a word with a broader meaning than umbilical:

Other hypernyms of umbilical include canal, channel, duct, epithelial duct, fetal membrane.

umbilical (noun)	funiculus (noun)
membranous duct connecting the fetus with the placenta	any of several body structure resembling a cord
	the stalk of a plant ovule or seed

umbilical (adjective)	funiculus (adjective)
relating to or resembling the umbilicus