triquetral vs pyramidal bone

triquetral and pyramidal bone both are nouns.

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

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

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

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

triquetral (noun)	pyramidal 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