Calcaneum n. : One of the bones of the tarsus which in man, forms the great bone of the heel; -- called also fibulare.

Example:
Had a fracture in Calcaneum 2 yrs ago. will it affect my army career?

Taxonomy
bone, Calcaneus fracture, articulations, humans, free encyclopedia, Thieme, tarsal bones, heel bone, fracture, right foot, Skeleton, Lateral aspect, tarsometatarsal articulations, Platzer, Atlas of Anatomy, condyles, Human anatomy, talus bone.

Defination from the web:
... Left calcaneus, superior and medial aspects. In humans, the calcaneus is the largest of the tarsal bones and the largest bone of the foot. ...