trapezoid bone vs carpal bone

trapezoid bone and carpal bone both are nouns.

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

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

Other hypernyms of trapezoid bone include carpal, wrist bone.

trapezoid bone (noun)	carpal bone (noun)
the wrist bone between the trapezium and the capitate bones	any of the eight small bones of the wrist of primates