umbilical cord vs duct

umbilical cord and duct both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbilical cord	Yes	No	No	No
duct	Yes	No	No	No

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

umbilical cord: membranous duct connecting the fetus with the placenta
duct: a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

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

umbilical cord (noun)	duct (noun)
membranous duct connecting the fetus with the placenta	an enclosed conduit for a fluid
	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
	a continuous tube formed by a row of elongated cells lacking intervening end walls