TORSION

noun Etymology: Late Latin ~-, torsio torment, alteration of Latin tortio, from torquēre to twist Date: 1543 the twisting or wrenching of a body by the exertion of forces tending to turn one end or part about a longitudinal axis while the other is held fast or turned in the opposite direction, the twisting of a bodily organ or part on its own axis, the reactive torque that an elastic solid exerts by reason of being under ~, ~al adjective ~ally adverb