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raster
Definitions
[ˈrastə], (Noun)
Definitions:
- a rectangular pattern of parallel scanning lines followed by the electron beam on a television screen or computer monitor
(e.g: a raster image)
Phrases:
Origin
:
1930s: from German Raster, literally ‘screen’, from Latin rastrum ‘rake’, from ras- ‘scraped’, from the verb radere
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definition by Oxford Dictionaries