/ Dictionary / Index C calcaneus: Meaning and Definition of Find definitions for: cal•ca•ne•us Pronunciation: (kal-kā'nē-us), [key] — pl. -ne•i the largest tarsal bone, forming the prominence of the heel. the corresponding bone in other vertebrates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: calcaneus (Thesaurus) calcaneum calcar Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language