Deflection or deflexion may refer to: Board games Deflection (chess), a tactic that forces an opposing chess piece to leave a square Khet (game), formerly Deflexion, an Egyptian-themed chess-like game using lasers Mechanics Deflection (ballistics), shooting ahead of a moving target so that the target and projectile will collide Deflection (engineering), the displacement of a structural element under load Deflection (physics), the event where an object collides and bounces against a plane surface Social sciences Deflexion (linguistics), the degeneration of a language's inflectional system over time Deflection (psychology), a defence mechanism Technologies Deflection routing, a routing strategy for networks to reduce the need of buffering packets Deflection yoke, a kind of magnetic lens used in cathode ray tubes Electrostatic deflection, a technique for modifying the path of charged particles by the use of an electric field Deflect.ca, a DDoS mitigation and website security service See also Deflector (disambiguation)