slideway vs moulin

slideway and moulin both are nouns.

Word	Noun	Adjective	Verb	Adverb
slideway	Yes	No	No	No
moulin	Yes	No	No	No

As nouns, moulin is a hyponym of slideway; that is, moulin is a word with a more specific, narrower meaning than slideway:

slideway: sloping channel through which things can descend
moulin: a chute through which supraglacial water enters a glacier, boring either to the bedrock or to the depth of common crevasse formation

Other hyponyms of slideway include glacier mill, coal chute, runway, water chute.

slideway (noun)	moulin (noun)
sloping channel through which things can descend	a chute through which supraglacial water enters a glacier, boring either to the bedrock or to the depth of common crevasse formation