acetate disk vs phonograph recording disk

acetate disk and phonograph recording disk both are nouns.

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

As nouns, acetate disk and phonograph recording disk are synonyms defined as:

acetate disk and phonograph recording disk: a disk coated with cellulose acetate

acetate disk (noun)	phonograph recording disk (noun)
a disk coated with cellulose acetate	a disk coated with cellulose acetate