distortion
noun

1
: the act of twisting or altering something out of its true, natural, or original state : the act of distorting
a distortion of the facts
2
: the quality or state of being distorted : a product of distorting: such as
a
physics : a lack of proportionality in an image resulting from defects in the optical system
an image free of distortion
b
: falsified reproduction of an audio or video signal caused by change in the wave form of the original signal

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