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Pronunciation: e'lon-ga'shun


  1. The increase in the gauge length measured after fracture in tension within the gauge length, expressed in percentage of original gauge length.
  2. The lengthening of a macromolecule, in the synthesis of long-chain fatty acids or in the synthesis of a protein.
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.