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point defect

noun, Crystallography
1.
an imperfection in a crystal's lattice structure, either a missing atom or ion creating a vacancy in the lattice or an extra atom or ion between two normal lattice points creating an interstitial.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for point defect
  • If a point defect exists, the symmetry is broken, and the parameter will be a larger positive value.
  • point defect dynamics in two-dimensional colloidal crystals.
  • We review our understanding of the basic mechanisms active in such structures that can result in point defect generation.
British Dictionary definitions for point defect

point defect

noun
1.
an imperfection in a crystal, characterized by one unoccupied lattice position or one interstitial atom, molecule, or ion
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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