raster

(ras′tər)

noun

the pattern of illuminated horizontal scanning lines formed on a picture tube when no signal is being received

Origin: Ger, screen < ML rastrum, rake < L, hoe, mattock < rasus: see raze

See raster in American Heritage Dictionary 4

noun

A scanning pattern of parallel lines that form the display of an image projected on a cathode-ray tube of a television set or display screen.

Origin:

Origin: German

Origin: , from Latin rāstrum, rake (from the resemblance of the parallel lines to a rake's path); see rēd- in Indo-European roots

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