rayon vs acetate

rayon and acetate both are nouns.

Word	Noun	Adjective	Verb	Adverb
rayon	Yes	No	No	No
acetate	Yes	No	No	No

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

Other hyponyms of rayon include acetate rayon, viscose, viscose rayon.

rayon (noun)	acetate (noun)
a synthetic silklike fabric	a fabric made from fibers of cellulose acetate
	a salt or ester of acetic acid