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cold-weld

[kohld-weld]
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verb (used with object)
  1. to weld (metal objects) by extreme high pressure with no application of heat.
  2. to weld (metal objects) by contact in a high vacuum, as in space.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for cold-weld

cold-weld

verb
  1. (tr) to join (two metal surfaces) without heat by forcing them together so that the oxide films are broken and adhesion occurs
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Derived Formscold welding, noun
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