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megapixel

[meg-uh-pik-suh l, -sel] /ˈmɛg əˌpɪk səl, -sɛl/
noun, Computers, Television.
1.
a unit equal to one million pixels, used to measure the resolution of a digital image:
My camera has a resolution of 12 megapixels.
Origin
1980-1985
1980-85; mega-+ pixel
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for megapixels

megapixel

/ˈmɛɡəˌpɪksəl/
noun
1.
(computing) one million pixels: a term used to describe the degree of resolution supplied by digital cameras, scanners, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for megapixels
noun

a unit of graphic resolution, 1,048,576 or 220 pixels, the speed at which a graphics card can display data

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
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Word Origin and History for megapixels

megapixel

n.

by 1977, from mega- + pixel.

Online Etymology Dictionary, © 2010 Douglas Harper
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