Achilles tendonitis; Achilles tendinitis
Medical term for inflammation of the Achilles tendon. Both spellings 'tendonitis' and 'tendinitis' are used in English.
Runners are prone to Achilles tendonitis.
Rest is necessary for treating Achilles tendonitis.
Compound of アキレス腱 (Achilles tendon) and 炎 (inflammation). The word アキレス腱 is a calque from English 'Achilles tendon', itself from the Greek mythological figure Achilles.