ductule vs canal

ductule and canal both are nouns.

Word	Noun	Adjective	Verb	Adverb
ductule	Yes	No	No	No
canal	Yes	No	Yes	No

As nouns, canal is a hypernym of ductule; that is, canal is a word with a broader meaning than ductule:

ductule: a very small duct
canal: a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance

Other hypernyms of ductule include channel, duct, epithelial duct.

ductule (noun)	canal (noun)
a very small duct	long and narrow strip of water made for boats or for irrigation
	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
	(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion

ductule (verb)	canal (verb)
	provide (a city) with a canal