A pixel is a basic unit of composition for an image to be displayed on
video display devices, printers, and many types of LED and other illuminated
display devices.

[[additional details to be filled in later.]]

[TV] Short for picture element. Not to be confused with Pixar, one of the most well known early computer graphics companies.

Or Voxel, which is volume element.
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A pixel is NOT a unit of measurement. (A unit of measurement is something that has a precisely defined length. But pixels vary in size - and can be any size you want.)

A pixel is an area that's painted a single colour. It's typically needle point-sized - and occurs along with other pixels in a rectangular grid - such as pixels on a computer monitor, graphic image or paper print-out.
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[Category Glossary]
| [Category Graphics]