Definition of expansion joint in English:

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expansion joint

Pronunciation: /ikˈspanSHən ˌjoint/


A joint that makes allowance for thermal expansion of the parts joined without distortion.
Example sentences
  • An expansion joint connects that bay to the penultimate bay from the original design.
  • In the portion of the building that remained standing to the north of the expansion joint, the slab and second-floor columns were heavily damaged.
  • Provide an expansion joint by removing the mortar along the joint down to the concrete, and use polyurethane caulk to fill the joint.

For editors and proofreaders

Syllabification: ex·pan·sion joint

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