pixel

Definition

One of the tiny dots that make up the representation of an image in a computer's memory.

Etymology

pix (“pictures”), + el(ement); often taken to be a blend of “picture” and “element”. The ⟨x⟩ stems from the abbreviation pics being sometimes also written as pix, which has been in use since the 1880s. First attested in 1965.

Example Sentences

• "We have chosen to sample at a 500 KC rate and we define each one of these samples as a picture element or pixel. We have sampled each pixel with 6-bit accuracy which is commensurate with the signal/noise ratio and the data accuracy."
• "In the tomographic images of the 30-day-old cheeses, the gantry had to be removed with image processing techniques: first, the binarised image (grey level larger than 10⁴) was eroded with a disk of three pixels."