Webster’s Revised Unabridged Dictionary · 1913
Calcaneum
Cal·ca′ne·um (kăl·kā′nē·ŭm) n.; pl. E. -neums, L. -nea. [L. the heel, fr. calx, calcis, the heel.] (Anal.) One of the bones of the tarsus which in man, forms the great bone of the heel; — called also fibulare.