os triquetrum vs carpal bone

os triquetrum and carpal bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
os triquetrum	Yes	No	No	No
carpal bone	Yes	No	No	No

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

os triquetrum: a wrist bone that articulates with the pisiform and hamate and lunate bones
carpal bone: any of the eight small bones of the wrist of primates

Other hypernyms of os triquetrum include carpal, wrist bone.

os triquetrum (noun)	carpal bone (noun)
a wrist bone that articulates with the pisiform and hamate and lunate bones	any of the eight small bones of the wrist of primates