intermixture vs roux

intermixture and roux both are nouns.

Word	Noun	Adjective	Verb	Adverb
intermixture	Yes	No	No	No
roux	Yes	No	No	No

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

Other hyponyms of intermixture include mincemeat, dressing, stuffing, batter, dough, mix, premix, filling.

intermixture (noun)	roux (noun)
the act of mixing together	a mixture of fat and flour heated and used as a basis for sauces
an additional ingredient that is added by mixing with the base
any foodstuff made by combining different ingredients