pyramidal bone vs triquetral bone

pyramidal bone and triquetral bone both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyramidal bone	Yes	No	No	No
triquetral bone	Yes	No	No	No

As nouns, pyramidal bone and triquetral bone are synonyms defined as:

pyramidal bone and triquetral bone: a wrist bone that articulates with the pisiform and hamate and lunate bones

Other synonyms of pyramidal bone include cuneiform bone, os triquetrum, triquetral.

pyramidal bone (noun)	triquetral bone (noun)
a wrist bone that articulates with the pisiform and hamate and lunate bones	a wrist bone that articulates with the pisiform and hamate and lunate bones