acetate disk vs disk

acetate disk and disk both are nouns.

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

As nouns, disk is a hypernym of acetate disk; that is, disk is a word with a broader meaning than acetate disk:

Other hypernyms of acetate disk include disc.

acetate disk (noun)	disk (noun)
a disk coated with cellulose acetate	a flat circular plate
	sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
	(computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored
	something with a round shape resembling a flat circular plate

acetate disk (verb)	disk (verb)
	draw a harrow over (land)