Definition from Wiktionary, the free dictionary
sprain (plural sprains)
- The act or result of spraining; lameness caused by spraining; as, a bad sprain of the wrist.
act or result of spraining
- 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.
to weaken a joint, ligament, or muscle