plural pixels
1
: any of the small discrete elements that together constitute an image (as on a television or digital screen)
… the number of pixels determines how sharp and realistic the image looks.—Leslie Meredith
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.
Each monitor measures 16 inches and has a resolution of 1920 x 1200 pixels. — Maryna Holovnova, New Atlas, 7 Nov. 2026 The brightness matters for HDR content, sure, but what really makes OLED stand out is per-pixel illumination—meaning each pixel can turn on or off independently. — ArsTechnica, 6 Nov. 2026 Its 1200p resolution delivers pixel-perfect clarity, and an impressive native 165Hz refresh rate keeps every movement across those pixels fluid and smooth. — Kelsey Fogarty, PC Magazine, 6 Nov. 2026 But now, even though Dimorphos is made up of only around one pixel in this initial image, it is clearly well separated from its parent body. — Andrew Jones, Space.com, 3 Nov. 2026 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

Browse Nearby Words

Cite this Entry

“Pixel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pixel. Accessed 11 Nov. 2026.

Kids Definition

pixel

noun
: 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

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