torque


torque

noun

  1. Mechanics. something that produces or tends to produce torsion or rotation; the moment of a force or system of forces tending to cause rotation.
  2. Machinery. the measured ability of a rotating element, as of a gear or shaft, to overcome turning resistance.
  3. Optics. the rotational effect on plane-polarized light passing through certain liquids or crystals.
  4. Also torc. a collar, necklace, or similar ornament consisting of a twisted narrow band, usually of precious metal, worn especially by the ancient Gauls and Britons.

verb (used with object), torqued, torqu·ing.

  1. Machinery. to apply torque to (a nut, bolt, etc.).
  2. to cause to rotate or twist.

verb (used without object), torqued, torqu·ing.

  1. to rotate or twist.

noun

  1. Also: torc a necklace or armband made of twisted metal, worn esp by the ancient Britons and Gauls
  2. any force or system of forces that causes or tends to cause rotation
  3. the ability of a shaft to cause rotation
n.

“rotating force,” 1884, from Latin torquere “to twist” (see thwart). The verb is attested from 1954. The word also is used (since 1834) by antiquarians and others as a term for the twisted metal necklace worn anciently by Gauls, Britons, Germans, etc., from Latin torques in this sense. Earlier it had been called in English torques (1690s).

n.

  1. A turning or twisting force.

  1. The tendency of a force applied to an object to make it rotate about an axis. For a force applied at a single point, the magnitude of the torque is equal to the magnitude of the force multiplied by the distance from its point of application to an axis of rotation. Torque is also a vector quantity, equal to the vector product of the vector pointing from the axis to the point of application of force and the vector of force; torque thus points upward from a counterclockwise rotation. See also angular momentum lever.

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