hamstring

Universal Words noun, verb noun 1 one of the five TENDONS behind the knee that connect the muscles of the upper leg to the bones of the lower leg: a hamstring injury * She's pulled a hamstring. 2 a TENDON behind the middle joint (= HOCK) of the back leg of a horse and some other animals verb (hamstrung, hamstrung sth from working or taking action in the way that is needed