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Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

pix·el

Audio Help [pik-suh

l, -sel] Pronunciation Key

–noun Computers, Television.

the smallest element of an image that can be individually processed in a video display system.

[Origin: 1965–70; pix² (def. 1) + el(ement)

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Encyclopædia Britannica, Inc.
pixel

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American Heritage Dictionary - Cite This Source - Share This

pix·el Audio Help (pĭk'səl, -sěl') Pronunciation Key
n. The basic unit of the composition of an image on a television screen, computer monitor, or similar display.

[pix¹ + el(ement).]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
pixel

1969, coined to describe the photographic elements of a television image, from pix (1932 abbreviation of pictures, coined by "Variety" headline writers) + el(ement).

WordNet - Cite This Source - Share This

pixel
noun
(computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution"

The American Heritage Science Dictionary - Cite This Source - Share This

pixel Audio Help (pĭk'səl) Pronunciation Key

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The most basic unit of an image displayed on a computer or television screen or on a printer. Pixels are generally arranged in rows and columns; a given combination among the pixels of various brightness and color values forms an image. ◇ A subpixel is one of three components of a pixel used in the representation of a color image. Each subpixel represents the contribution of a single color—red, green, or blue—to the overall color and brightness of the pixel.

Our Living Language : The images on a computer screen are composed of tiny dots called pixels (short for picture element). The computer controls each pixel individually. Most monitors have hundreds of thousands, or often millions, of pixels that are lit or dimmed to create an image. Each pixel of a color screen is made out of one red, one blue, and one green subpixel, generally arranged in a triangle, adjusted individually to create the combined effect of a single color but treated as a unit pixel for determining resolution. Pixels vary in size according to the size and resolution of the monitor. Smaller pixels provide higher resolution, and therefore sharper images, but require more memory to store the color and intensity data of each pixel and more processing time to refresh the screen. Resolution is frequently referred to in terms of dpi, or dots per inch.