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| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a scrap or morsel of food left at a meal. |
| optical scanner | |
| —n | |
| See also optical character reader a computer peripheral device enabling printed material, including characters and diagrams, to be scanned and converted into a form that can be stored in a computer | |
| optical scanner
A device that converts printed images and text into digital information that can be edited, transmitted, and stored. Optical scanners work by electronically measuring the intensity of color at a large number of individual locations across the page (often using phototransistors), and converting these measurements into digital numerical values usable by computers and other digital devices. See also A/D converter. |