metacarpal bone vs bone

metacarpal bone and bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
metacarpal bone	Yes	No	No	No
bone	Yes	Yes	Yes	No

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

Other hypernyms of metacarpal bone include os.

metacarpal bone (noun)	bone (noun)
any bone of the hand between the wrist and fingers	a shade of white the color of bleached bones
	rigid connective tissue that makes up the skeleton of vertebrates
	the porous calcified substance from which bones are made

metacarpal bone (adjective)	bone (adjective)
	consisting of or made up of bone

metacarpal bone (verb)	bone (verb)
	remove the bones from
	study intensively, as before an exam