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3 definitions found
 for Torsion
From The Collaborative International Dictionary of English v.0.48 :

  Torsion \Tor"sion\, n. [F., fr. LL. torsio, fr. L. torquere,
     tortum, to twist. See Torture.]
     1. The act of turning or twisting, or the state of being
        twisted; the twisting or wrenching of a body by the
        exertion of a lateral force tending to turn one end or
        part of it about a longitudinal axis, while the other is
        held fast or turned in the opposite direction.
        [1913 Webster]
     2. (Mech.) That force with which a thread, wire, or rod of
        any material, returns, or tends to return, to a state of
        rest after it has been twisted; torsibility.
        [1913 Webster]
     Angle of torsion (of a curve) (Geom.), the indefinitely
        small angle between two consecutive osculating planes of a
        curve of double curvature.
     Moment of torsion (Mech.) the moment of a pair of equal and
        opposite couples which tend to twist a body.
     Torsion balance (Physics.), an instrument for estimating
        very minute forces, as electric or magnetic attractions
        and repulsions, by the torsion of a very slender wire or
        fiber having at its lower extremity a horizontal bar or
        needle, upon which the forces act.
     Torsion scale, a scale for weighing in which the fulcra of
        the levers or beams are strained wires or strips acting by
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a tortuous and twisted shape or position; "they built a
           tree house in the tortuosities of its boughs"; "the acrobat
           performed incredible contortions" [syn: tortuosity,
           tortuousness, torsion, contortion, crookedness]
      2: a twisting force [syn: torsion, torque]

From Moby Thesaurus II by Grady Ward, 1.0 :

  67 Moby Thesaurus words for "torsion":
     ambages, anamorphism, anamorphosis, anfractuosity, asymmetry,
     buckle, circuitousness, circumambages, circumbendibus,
     circumlocution, circumvolution, contortion, convolution, crinkle,
     crinkling, crookedness, deflection, deflexure, detorsion,
     deviation, diffraction, diffusion, dispersion, disproportion,
     distortion, flection, flexuosity, flexuousness, flexure, gnarl,
     imbalance, intorsion, involution, irregularity, knot, lopsidedness,
     meander, meandering, quirk, refraction, rivulation, scatter, screw,
     sinuation, sinuosity, sinuousness, skewness, slinkiness, snakiness,
     stress, torque, tortility, tortuosity, tortuousness, turn, turning,
     twist, twisting, undulation, unsymmetry, warp, wave, waving,
     winding, wrench, wrest, wring

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