n. a change for the worse
n. a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal)
n. the act of distorting something so it seems to mean something it was not intended to mean
n. 扭曲, 变形, 曲解
[计] 畸变; 失真