- Television. a pattern of scanning lines covering the area upon which the image is projected in the cathode-ray tube or liquid-crystal display of a television set or other screen.
- Digital Technology. a set of horizontal lines composed of individual pixels, used to form an image on a screen or in matrix printing.
Origin of raster
- a pattern of horizontal scanning lines traced by an electron beam, esp on a television screen
- to use web-based technology to turn a digital image into a large picture composed of a grid of black and white dots
Word Origin and History for raster
1934 in electrical engineering, from German Raster "screen, frame," from Latin rastrum "rake," from rasum, from rodere "to scrape" (see raze). Related: Rasterization; rasterize. From Latin form rastellum comes French râteau "rake," formerly ratel, originally rastel.