torsion [ tawr-sh uh n ] SHOW IPA / ˈtɔr ʃən / PHONETIC RESPELLING noun the act of twisting. the state of being twisted. . Mechanics the twisting of a body by two equal and opposite torques. the internal torque so produced. . Mathematics the degree of departure of a curve from a plane. a number measuring this. RELATED WORDS curve
uncertainty Nearby words torsade de pointes
torsion group Origin of torsion 1375–1425; 1535–45 for def 1
late Middle English torcion
wringing one's bowels <
Old French torsion
Late Latin torsiōn-
) torment, equivalent to
) twisted (see
-iōn- -ion Related forms tor·sion·al, adjective tor·sion·al·ly, adverb
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for torsion
To illustrate the movement of
torsion in the spine, or its rotation round its own axis.
The geotropic curvature and
torsion are increased by lowering of temperature, and decreased by rise of temperature.
Between the hook or crank (e) and the centre of the upper screw (a a), the india-rubber in a state of
torsion (f) extends.
torsion thread itself was not of metal, but glass, according to the excellent suggestion of the late Dr. Ritchie236. British Dictionary definitions for torsion noun the twisting of a part by application of equal and opposite torques at either end the condition of twist and shear stress produced by a torque on a part or component the act of twisting or the state of being twisted Derived Forms torsional, adjective torsionally, adverb Word Origin for torsion
C15: from Old French, from medical Latin
torsiō griping pains, from Latin torquēre to twist, torture
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for torsion 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.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for torsion n. A twisting or rotation of a part on its long axis. Twisting of the cut end of an artery to arrest hemorrhage. Ocular rotation around the anteroposterior axis. Related forms tor ′sion•al adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for torsion The stress on an object when torque is applied to it. A mathematical operation in geometry measuring how tightly a plane is twisted.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.