Torsion

tdr's hun, n. m A.ct of turning or twisting. (Mech.) That force "ith which a thread, wire, rod of any material, returns, or tends to return, state of rest after it has been twisted. — Tort, 'Law.) Any wrong or injury; a wrongful act, which an action will lie; a form of action, in States, for a wrong or injury.— Tort/ile, -il, a.