Definitions
1.NounThe artistic technique of moving a light source to selectively illuminate parts of the subject or scene a camera is recording (at a slow shutter speed), or to shine directly into the camera and in this way sketch.
2.NounCamera painting, the artistic technique of moving a camera (while it records at a low shutter speed) such that light sources appear in multiple places or as streaks in the resulting photograph, the "painting".
3.NounA painting created using one of these techniques.
4.NounUsed other than figuratively or idiomatically: see light, painting.