Abbreviation of picture element: the smallest possible element of a picture. A digital image is defined by a discrete number of pixels arranged in a 2D grid or mosaic. Many very small pixels blend together in the human eye and brain to give the illusion of a continuous, unbroken image.
Abbreviation for a picture element, the smallest discrete part of a digital image display.
A picture element, i.e.; an individually adjustable picture element in a digital image. Variations in its size and brightness contribute to the resolution and contrast of the image.