/ Dictionary / Index A Achilles tendon: Meaning and Definition of Find definitions for: Achil'les ten'don Pronunciation: [key] — Anat. Anat. the tendon joining the calf muscles to the heel bone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Achilles reflex Achimaas Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language