cheilo-, cheil-, chilo-, chil-
(Greek: lip, lips; edge or brim)
The Achilles tendon is one of the better known anatomic features in sports medicine because of the abrupt nature of some abrupt injuries to this tendon. It is in the back of the lower leg and connects the calf muscle (the triceps surae) with the calcaneus bone in the heel.
This tendon is so named for the hero whose heel, according to Greek mythology, was the only part of his body where he was unprotected from harm.
2. Surgery involving the chiseling off of irregular bony edges of a joint cavity that interfere with normal motion.