ras·​ter | \ˈra-stər \

Definition of raster 

: a scan pattern (as of the electron beam in a cathode-ray tube) in which an area is scanned from side to side in lines from top to bottom also : a pattern of closely spaced rows of dots that form an image (as on the cathode-ray tube of a television or computer display)

Examples of raster in a Sentence

Recent Examples on the Web

Essentially, in rasterization, the camera represents a raster pixel grid (hence, rasterization). Peter Bright, Ars Technica, "DirectX Raytracing is the first step toward a graphics revolution," 19 Mar. 2018 Ron Jones was developing the raster image processor for large-format graphics, and Dr. Robert Lawrence Thornton was accumulating 50 patents for lasers at PARC, a Xerox company. John William Templeton, The Mercury News, "Opinion: Tech companies had many black executives in the 1980s; what happened?," 18 May 2017 NOAA eventually expects to phase out the raster charts, dedicating its resources instead to making the vector charts the premier nautical guide, Nyberg said. Colin Campbell, baltimoresun.com, "Amid the rise of GPS, NOAA weighs a move away from paper charting," 5 June 2017 Hollen hand-draws his designs in a raster program, converting them to a vector, a kind of blueprint read by an outsourced laser cutter that cuts the patterns. R. Daniel Foster, latimes.com, "Home security gets arty with nature-inspired gate and window designs," 29 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'raster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of raster

1934, in the meaning defined above

History and Etymology for raster

borrowed from German Raster, originally, "screen used for printing halftones," borrowed from Latin *rāster (presumed singular of rāstrī), rāstrum "hoe with two to six tines," from rādere "to scrape, scratch, pare away, shave" + -trum, suffix of instruments (going back to Indo-European *-tro-) — more at rase

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The first known use of raster was in 1934

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