- noun a high-intensity flashing beam of light that makes objects in rapidly repeating motion appear to slow down or stop
- A repeatable and artificially produced burst of bright light. Such a flash is usually generated by applying a high voltage to an electrode of a tube containing an inert gas such as xenon. The gas becomes ionized, which permits it to rapidly discharge the energy previously stored in a capacitor. Used, for instance, in photography, or in visual special effects. Also called electronic flash, flash (2), or photoflash.
- To cause a strobe (3) to flash.
- On a display device such as a radar screen, a spot, such as a blip, which serves as a reference for deriving information such as range, bearing, or elevation.
- abbreviation for stroboscope
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