
A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics, the pattern of image storage and transmission used in most computer bitmap image systems. The word raster comes from the Latin word rastrum (a rake), which is derived from radere (to scr...
Found on
http://en.wikipedia.org/wiki/Raster_scan

A scanning pattern, generally from left to right while progressing from top to bottom of the imaging sensor or the display monitor. Generally comprised of two fields composed of odd and even lines
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http://www.encyclo.co.uk/local/21048

A scanning pattern, generally from left to right while progressing from top to bottom of the imaging sensor or the display monitor. Generally comprised of two fields composed of odd and even lines.
Found on
http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl

the horizontal and vertical pattern made by a CRT gun which scans across and from top to bottom of a screen and then back again
Found on
https://sciencetrek.org/sciencetrek/topics/television/glossary.cfm
No exact match found.