plural vs thinning shears

plural and thinning shears both are nouns.

Word	Noun	Adjective	Verb	Adverb
plural	Yes	Yes	No	No
thinning shears	Yes	No	No	No

plural (noun)	thinning shears (noun)
the form of a word that is used to denote more than one	shears with one serrate blade; used for thinning hair

plural (adjective)	thinning shears (adjective)
grammatical number category referring to two or more items or units
composed of more than one member, set, or kind