lunate bone vs wrist bone

lunate bone and wrist bone both are nouns.

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

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

Other hypernyms of lunate bone include carpal, carpal bone.

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