pix·​el | \ˈpik-səl, -ˌsel\

Definition of pixel 

1 : any of the small discrete elements that together constitute an image (as on a television or computer screen)

2 : any of the detecting elements of a charge-coupled device used as an optical sensor

Examples of pixel in a Sentence

Recent Examples on the Web

The brightest stars in the image, Beta Gruis and R Doradus, saturated an entire column of camera detector pixels on the satellite’s second and fourth cameras. Chris Ciaccia, Fox News, "NASA unveils first images from TESS probe's alien planet hunting quest," 18 Sep. 2018 The photon that bounced off the object would hit a photodiode (essentially a single pixel detector). Chris Lee, Ars Technica, "Humans can perform ghost imaging, no computer required," 4 Sep. 2018 Brixels™, as the name suggests, combines brick and pixels. Liz Stinson, Curbed, "Say hello to ‘Brixel’, 2018’s answer to the brick," 16 Oct. 2018 From giant vistas to expressive faces, AC:O does a lot with whatever pixels your screen has to offer. Sam Machkovech, Ars Technica, "Google’s Project Stream: That’s really a full Assassin’s Creed in my browser," 9 Oct. 2018 Officials said that footage had gone through a process to identify pixels from each frame and aligned them to help limit shaking. Youssef Rddad, The Seattle Times, "No charges against Minneapolis officers in black man’s death," 31 July 2018 Once enabled, Samba TV can track nearly everything that appears on the TV on a second-by-second basis, essentially reading pixels to identify network shows and ads, as well as programs on Netflix and HBO and even video games played on the TV. Sapna Maheshwari, New York Times, "How Smart TVs in Millions of U.S. Homes Track More Than What’s On Tonight," 5 July 2018 One approach tries to solve the problem by starting with the stream of photons and air vibrations that Augie, and all of us, receives—and that reaches the computer as pixels of a digital image and sound samples of an audio recording. Alison Gopnik, Scientific American, "An AI That Knows the World Like Children Do," 1 June 2017 The tool will process the pixels through machine learning to provide more details and also provide relevant search tags. Shannon Liao, The Verge, "How to use Google Lens," 11 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pixel.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of pixel

1965, in the meaning defined at sense 1

History and Etymology for pixel

pix + element

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Dictionary Entries near pixel

pivot stand

pivot tooth






Statistics for pixel

Last Updated

1 Dec 2018

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The first known use of pixel was in 1965

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More Definitions for pixel



English Language Learners Definition of pixel

: any one of the very small dots that together form the picture on a television screen, computer monitor, etc.


pix·​el | \ˈpik-səl \

Kids Definition of pixel

: any of the small parts that make up an image (as on a computer or television screen)

More from Merriam-Webster on pixel

Rhyming Dictionary: Words that rhyme with pixel

Britannica English: Translation of pixel for Arabic Speakers

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to move with a clumsy heavy tread

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