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shear stress

or shear·ing stress

[sheer stres or sheer-ing stres]
noun Physics.
  1. the external force acting on an object or surface parallel to the slope or plane in which it lies; the stress tending to produce shear.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for shear stress

shear stress

noun
  1. the form of stress in a body, part, etc, that tends to produce cutting rather than stretching or bending
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

shear stress in Science

shear stress

  1. A form of stress that subjects an object to which force is applied to skew, tending to cause shear strain. For example, shear stress on a block of wood would arise by fixing one end and applying force to this other; this would tend to change the block's shape from a rectangle to a parallelogram. See also strain.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.