
Achilles tendon
    
    WordNet
        noun
(1)   A large tendon that runs from the heel to the calf
        WiktionaryText
        Etymology
Achillis tendo, a term devised by the Dutch anatomist Philip Verheyden in 1693 in reference to the mythological account of Achilles being held by the heel when dipped in the River Styx
Noun
Achilles’ tendon

