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8 Words That Are Older Than You Think

barrel distortion

noun, Optics.
1.
a distortion produced by a lens in which the magnification decreases toward the edge of the field.
Origin
1885-1890
1885-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for barrel distortion

barrel distortion

noun
1.
(photog) distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards
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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8
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