the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > cathode-ray tube > [noun] > line or pattern on screen > appearances on screen (2)
In an oscilloscope: a series of oscillations caused by background noise, electronic interference, etc., displayed as an irregular series of peaks…
Chiefly Electronics. Random or irregular variation in the shape or timing of a regularly repeated pulse; the resulting unsteadiness of an image in a…