from
The Free On-line Dictionary of Computing (8 July 2008)
picture element
pixel
<graphics> (pixel) The smallest resolvable rectangular area of
an {image}, either on a screen or stored in memory. Each
pixel in a {monochrome} image has its own brightness, from 0
for black to the maximum value (e.g. 255 for an eight-bit
pixel) for white. In a colour image, each pixel has its own
brightness and colour, usually represented as a triple of red,
green and blue intensities (see {RGB}).
Compare {voxel}.
(1998-05-08)