calcaneus

< /kælˈkeɪ niˌaɪ/.

1. Anatomy. the largest tarsal bone, forming the prominence of the heel.
2. Zoology. the corresponding bone in other vertebrates.

noun plural -nei (-nɪˌaɪ) or -nea (-nɪə)

1. the largest tarsal bone, forming the heel in manNontechnical name: heel bone
2. the corresponding bone in other vertebrates

n.

from Latin (os) calcaneum “bone of the heel,” from calcem (nominative calx (1)) “heel.”

n. pl. cal•ca•ne•i (-nē-ī′)

1. The quadrangular bone at the back of the tarsus, the largest of the tarsal bones.heel bone