seminal duct vs epithelial duct

seminal duct and epithelial duct both are nouns.

Word	Noun	Adjective	Verb	Adverb
seminal duct	Yes	No	No	No
epithelial duct	Yes	No	No	No

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

seminal duct: the efferent duct of the testis in man
epithelial duct: a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

Other hypernyms of seminal duct include canal, channel, duct.

seminal duct (noun)	epithelial duct (noun)
the efferent duct of the testis in man	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance