ras·ter 
(răstər)
(răstər)n.
A scanning pattern of parallel lines that form the image projected on a cathode-ray tube of a television set or display screen.
[German, from Latin rāstrum, rake (from the resemblance of the parallel lines to a rake's path); see rēd- in the Appendix of Indo-European roots.]
- coverall
- cover ass
- cover boy
- cover charge
- cover crop
- Coverdale
- covered bridge
- covered wagon
- coverer
- cover girl
- cover glass
- cover ground
- covering
- covering letter
- coverless
- coverlet
- cover letter
- coverlid
- cover (one's) ass
- cover one's ass
- cover (one's) tracks
- cover one's tracks
- coverpoint
- covers
- coversine