scute vs carapace

scute and carapace both are nouns.

Word	Noun	Adjective	Verb	Adverb
scute	Yes	No	No	No
carapace	Yes	No	No	No

As nouns, carapace is a hyponym of scute; that is, carapace is a word with a more specific, narrower meaning than scute:

scute: large bony or horny plate as on an armadillo or turtle or the underside of a snake
carapace: hard outer covering or case of certain organisms such as arthropods and turtles

Other hyponyms of scute include cuticle, shell, shield.

scute (noun)	carapace (noun)
large bony or horny plate as on an armadillo or turtle or the underside of a snake	hard outer covering or case of certain organisms such as arthropods and turtles