calcaneus calcaneum • calcar · · · Info · Definitions · Synonyms · Characters · · calcaneus · · Text Latin · · Script 9 · · Length Definitions · · · (noun) the largest tarsal bone; forms the human heel. Synonyms: heelbone, os tarsi fibulare. · · Noun Definition 1 Synonyms · · · heelbone · · Synonym 1 os tarsi fibulare · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075