 ##  [Crystal Defect](/index.php/crystal-defect) 

  ##  [Crystal Defect](https://natural.quantumdictionary.io/crystal-defect-0) 

  
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**Natural &amp; Formal Sciences Dictionary**

 
Definition

A localized disruption of the ideal periodic arrangement in a crystal lattice, including point defects (vacancies, interstitials, substitutional impurities), line defects (dislocations), and planar defects (stacking faults), here emphasizing localized point-type disruptions described by deviations from perfect lattice occupancy or site identity.