trapezium bone vs carpal

trapezium bone and carpal both are nouns.

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

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

trapezium bone: the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
carpal: any of the eight small bones of the wrist of primates

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

trapezium bone (noun)	carpal (noun)
the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals	any of the eight small bones of the wrist of primates

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