heelbone vs os tarsi fibulare

heelbone and os tarsi fibulare both are nouns.

Word	Noun	Adjective	Verb	Adverb
heelbone	Yes	No	No	No
os tarsi fibulare	Yes	No	No	No

As nouns, heelbone and os tarsi fibulare are synonyms defined as:

heelbone and os tarsi fibulare: the largest tarsal bone; forms the human heel

Other synonyms of heelbone include calcaneus.

heelbone (noun)	os tarsi fibulare (noun)
the largest tarsal bone; forms the human heel	the largest tarsal bone; forms the human heel