flyback

Noun

 * 1) The movement of the electron beam back to its initial position between scan lines in a cathode-ray tube display.
 * 2) A special kind of electrical transformer, originally designed to generate high-voltage sawtooth signals at a relatively high frequency, and now extensively used in switched-mode power supplies.

Adjective

 * 1) Of a rabbit's fur: tending to spring back to its original position during stroking or brushing.