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  1. gastrocnemius

    • IPA[ˌɡastrō(k)ˈnēmēəs]

    美式

    • n.
      the chief muscle of the calf of the leg, which flexes the knee and foot. It runs to the Achilles tendon from two heads attached to the femur.
    • noun: gastrocnemius, plural noun: gastrocnemii