hamstring

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ham·string / ˈhamˌstring/ • n. any of five tendons at the back of a person's knee: he pulled a hamstring. ∎  the great tendon at the back of a quadruped's hock.• v. (past and past part. -strung) [tr.] cripple (a person or animal) by cutting their hamstrings. ∎  (usu. be hamstrung) severely restrict the efficiency or effectiveness of: we were hamstrung by a total lack of knowledge.

hamstring

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hamstring (ham-string) n. any of the tendons at the back of the knee. h. muscles the biceps femoris, semitendinosus, and semimembranosus, attached by the hamstrings to their insertions in the tibia and fibula.