os pisiforme vs pisiform

os pisiforme and pisiform both are nouns.

Word	Noun	Adjective	Verb	Adverb
os pisiforme	Yes	No	No	No
pisiform	Yes	No	No	No

As nouns, os pisiforme and pisiform are synonyms defined as:

os pisiforme and pisiform: a small wrist bone that articulates only with the triquetral

Other synonyms of os pisiforme include pisiform bone.

os pisiforme (noun)	pisiform (noun)
a small wrist bone that articulates only with the triquetral	a small wrist bone that articulates only with the triquetral