[ kal-key-nee-uh s ]
/ kælˈkeɪ ni əs /

noun, plural cal·ca·ne·i [kal-key-nee-ahy] /kælˈkeɪ niˌaɪ/.

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

Origin of calcaneus

1920–25; < Late Latin: heel, noun use of calcāneus of the heel; see calcaneum
Also called heel bone.


cal·ca·ne·al, cal·ca·ne·an, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for calcaneus

  • If there is a bony projection from the calcaneus, it should be shaved off with the chisel.

    Manual of Surgery|Alexis Thomson and Alexander Miles
  • The tendo-calcaneus is detached from the calcaneus, the bursa dissected out, and the tendon replaced.

    Manual of Surgery|Alexis Thomson and Alexander Miles
  • A second diagnostic point is the abnormal position of the calcaneus and scaphoid with relation to the malleoli and astragalus.

British Dictionary definitions for calcaneus


calcaneum (kælˈkeɪnɪəm)

/ (kælˈkeɪnɪəs) /

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

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

Derived forms of calcaneus

calcaneal or calcanean, adjective

Word Origin for calcaneus

C19: from Late Latin: heel, from Latin calx heel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for calcaneus

[ kăl-kānē-əs ]

n. pl. cal•ca•ne•i (-nē-ī′)

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

Other words from calcaneus

cal•cane•al adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.