wrist vs carpal bone

wrist and carpal bone both are nouns.

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

wrist (noun)	carpal bone (noun)
a joint between the distal end of the radius and the proximal row of carpal bones	any of the eight small bones of the wrist of primates