a jagged, stairstep effect on curved or diagonal lines that are reproduced in low resolution, as on a computer printout or display.
Also called jaggies.
Compare antialiasing. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
aliasing (ˈeɪlɪəsɪŋ)
radio, television the error in a vision or sound signal arising from limitations in the system that generates or processes the signal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Science Dictionary
aliasing   (ā'lē-ə-sĭng)  Pronunciation Key 
  1. Jagged distortions in curves and diagonal lines in computer graphics caused by limited or diminished screen resolution. Compare antialiasing.

  2. Distortion in a reproduced sound wave caused by a low sampling rate during the recording of the sound signal as digital information.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Computing Dictionary

aliasing definition

1. When several different identifiers refer to the same object. The term is very general and is used in many contexts.
See alias, aliasing bug, anti-aliasing.
2. (Or "shadowing") Where a hardware device responds at multiple addresses because it only decodes a subset of the address lines, so different values on the other lines are ignored.
The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences
Where film's diagonal lines sometimes appear jagged on plasma, this set runs a special anti-aliasing algorithm to fix the problem.
Velocity aliasing is a particularly difficult problem that generally requires human intervention to do nearly perfectly.
Aliasing of data causes the introduction of a false signal that is not contained in the original data.
Because small features can have anomalies as big or bigger than larger deeper features the potential for aliasing is great.
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