torsion

noun

1. the act of twisting.
2. the state of being twisted.
3. Mechanics.
   1. the twisting of a body by two equal and opposite torques.
   2. the internal torque so produced.
4. Mathematics.
   1. the degree of departure of a curve from a plane.
   2. a number measuring this.

noun

1. 1. the twisting of a part by application of equal and opposite torques at either end
   2. the condition of twist and shear stress produced by a torque on a part or component
2. the act of twisting or the state of being twisted

n.

early 15c., “wringing pain in the bowels,” from Old French torsion (early 14c.), from Late Latin torsionem (nominative torsio) “a wringing or gripping,” from Latin tortionem (nominative tortio) “torture, torment,” noun of action from past participle stem of torquere “to twist” (see thwart). Meaning “action or process of twisting as by opposing forces” is first recorded 1540s.

n.

1. A twisting or rotation of a part on its long axis.
2. Twisting of the cut end of an artery to arrest hemorrhage.
3. Ocular rotation around the anteroposterior axis.

1. The stress on an object when torque is applied to it.
2. A mathematical operation in geometry measuring how tightly a plane is twisted.