pedal pushers vs plural form

pedal pushers and plural form both are nouns.

Word	Noun	Adjective	Verb	Adverb
pedal pushers	Yes	No	No	No
plural form	Yes	No	No	No

pedal pushers (noun)	plural form (noun)
(used in the plural) snug trousers ending at the calves; worn by women and girls	the form of a word that is used to denote more than one