lunate bone vs carpal

lunate bone and carpal both are nouns.

Word	Noun	Adjective	Verb	Adverb
lunate bone	Yes	No	No	No
carpal	Yes	Yes	No	No

As nouns, carpal is a hypernym of lunate bone; that is, carpal is a word with a broader meaning than lunate bone:

Other hypernyms of lunate bone include carpal bone, wrist bone.

lunate bone (noun)	carpal (noun)
one of the eight small wrist bones	any of the eight small bones of the wrist of primates

lunate bone (adjective)	carpal (adjective)
	of or relating to the wrist