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expansion joint

a joint between two parts of a structure, machine, etc., permitting expansion, as from heat, without structural damage.
Origin of expansion joint
1840-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for expansion joint
  • The bridge rail sections at the bridge deck expansion joint were adjusted.
  • In end spans, the closure joint is usually nearer to the end expansion joint.
  • The anchors are cast into the joint panels on either side of the expansion joint.
  • Any grout that flows into an expansion joint shall be flushed from the expansion joint immediately.
British Dictionary definitions for expansion joint

expansion joint

(engineering) a gap in steel or concrete to allow for thermal expansion
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
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