[data models]
The smallest unit of information in a digital image or raster map, usually square or rectangular. Often used synonymously with cell. Pixel is an abbreviation of picture element.
[remote sensing]
In remote sensing, the fundamental unit of data collection; represented as a cell in an array of data values.
[graphics (computing)]
The smallest element of a display device, such as a video monitor, that can be independently assigned attributes, such as color and intensity.