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.

point defect

noun

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

Example Sentences

Because nitrogen only has three electrons to share with its neighbors, compared to carbon’s four, this creates what’s called a point defect in the diamond.

From Forbes