Shunt  —v. 1 move (a train) between sidings etc.; (of a train) be shunted. 2 move or put aside; redirect. —n. 1 shunting or being shunted. 2 electr. Conductor joining two points of a circuit, through which current may be diverted. 3 surgery alternative path for the circulation of the blood. 4 slang collision of vehicles, esp. One behind another. [perhaps from *shun]