. (Physics) An air-filled gap in a magnetic or electric circuit; specif., in a dynamo or motor, the space between the field-magnet poles and the armature; clearance. [ Webster 1913 Suppl. ]
(n) a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence, Syn. quarry, fair game, target, Example:he fell prey to muggers; everyone was fair game; the target of a manhunt