What does "sprain" mean?

Sprain: To weaken, as a joint, ligament, or muscle, by sudden and excessive exertion, as by wrenching; to overstrain, or stretch injuriously, but without luxation; as, to sprain one's ankle.

Additional senses

  1. 2.The act or result of spraining; lameness caused by spraining; as, a bad sprain of the wrist. Sprain fracture (Med.), the separation of a tendon from its point of insertion, with the detachment of a shell of bone to which the tendon is attached.

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