cuisse vs plate armor

cuisse and plate armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
cuisse	Yes	No	No	No
plate armor	Yes	No	No	No

As nouns, plate armor is a hypernym of cuisse; that is, plate armor is a word with a broader meaning than cuisse:

cuisse: armor plate that protects the thigh
plate armor: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

Other hypernyms of cuisse include armor plate, armor plating, armour plate, plate armour.

cuisse (noun)	plate armor (noun)
armor plate that protects the thigh	specially hardened steel plate used to protect fortifications or vehicles from enemy fire
	a historical type of personal armor made from iron or steel plates, which superseded mail during the 14th century.