dislocation (luxation) (dis-lŏ-kay-shŏn) n. displacement from their normal position of bones meeting at a joint such that there is complete loss of contact of the joint surfaces. The bones are restored to their normal positions by manipulation under local or general anaesthesia (see reduction). Compare subluxation.

dislocation
1. The relative displacement to either side of a fracture.

2. Imperfections developed along a line of atoms within a crystal structure, which may displace or add a row of atoms into the regular structure. Edge dislocations add rows of atoms; screw dislocations displace rows of atoms along a plane.