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point defect

noun, Crystallography
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. Unabridged
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

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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