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.
Words nearby point defect
British Dictionary definitions for point defect
point defect
noun
an imperfection in a crystal, characterized by one unoccupied lattice position or one interstitial atom, molecule, or ion