pixel

noun

pix·​el ˈpik-səl How to pronounce pixel (audio)
-ˌsel
plural pixels
1
: any of the small discrete elements that together constitute an image (as on a television or digital screen)
If the ball is flying from left to right across a video screen, a pixel at one fixed location on the screen will get darker and darker as time ticks on because it depicts points farther and farther to the left on the ball.Frédo Durand et al.
2
: any of the detecting elements of a solid-state optical sensor (such as a CCD or CMOS device)
The team used a new CCD detector that has an 8,192 by 8,192 pixel array, which makes it the world's largest astronomical CCD.Astronomy
the … CMOS image sensor provides a 9-µm pixel size …Mathew Dirjish

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Is it pixelated or pixilated?

Pixelated is used to describe digital images in which individual pixels are discernable, as when you look closely at a large photo and can see the tiny dots that make up the image. Pixilated (coined from pixie, a pixie being a cheerful, mischievous sprite) is usually used to describe things considered whimsical, or people who seem dazed or lost in thought. While pixelated is a late 20th century coinage, pixilated has been in use since the mid-19th century.

Examples of pixel in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To affordably resolve the vast space between the Sun and the planets, researchers divide the space into large cubes—analogous to two-dimensional pixels in a camera. JSTOR Daily, 24 Oct. 2025 The display area matches the size of a human pupil and achieves a resolution beyond 25,000 pixels per inch (ppi), which is about 150 times denser than most smartphone screens. Aamir Khollam, Interesting Engineering, 24 Oct. 2025 The 8-mm manual focusing lens has a resolution of 256 × 192 pixels, which can be enhanced to simulate 512 × 384 pixels. New Atlas, 24 Oct. 2025 That’s more than the Vision Pro’s 23-million-pixel setup, though Apple doesn’t specify the per-eye resolution for its headset. PC Magazine, 22 Oct. 2025 See All Example Sentences for pixel

Word History

Etymology

pix + element

First Known Use

1965, in the meaning defined at sense 1

Time Traveler
The first known use of pixel was in 1965

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Cite this Entry

“Pixel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pixel. Accessed 29 Oct. 2025.

Kids Definition

pixel

noun
pix·​el ˈpik-səl How to pronounce pixel (audio)
-ˌsel
: any of the small elements that together make up an image (as on a television screen) or sensor (as in a camera)
Etymology

from pix, an altered form of pictures, and element

Last Updated: - Updated example sentences
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