| dislocation [´dis·lō`kā·shǝn] CRYSTALLOGRAPHY A defect occurring along certain lines in the crystal structure and present as a closed ring or a line anchored at its ends to other dislocations, grain boundaries, the surface, or other structural feature. Also known as line defect. GEOLOGY Relative movement of rock on opposite sides of a fault. Also known as displacement. MEDICINE Displacement of one or more bones of a joint. |