pedal pushers vs trousers

pedal pushers and trousers both are nouns.

Word	Noun	Adjective	Verb	Adverb
pedal pushers	Yes	No	No	No
trousers	Yes	No	No	No

As nouns, trousers is a hypernym of pedal pushers; that is, trousers is a word with a broader meaning than pedal pushers:

pedal pushers: (used in the plural) snug trousers ending at the calves; worn by women and girls
trousers: (usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately

Other hypernyms of pedal pushers include pair of trousers, pant.

pedal pushers (noun)	trousers (noun)
(used in the plural) snug trousers ending at the calves; worn by women and girls	(usually in the plural) a garment extending from the waist to the knee or ankle, covering each leg separately