Meaning : A change for the worse.
Synonyms : deformation
Meaning : A shape resulting from distortion.
Synonyms : distorted shape
Meaning : An optical phenomenon resulting from the failure of a lens or mirror to produce a good image.
Synonyms : aberration, optical aberration
Meaning : 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).
Example :
Heavy metal guitar players use vacuum tube amplifiers to produce extreme distortion.
Meaning : The act of distorting something so it seems to mean something it was not intended to mean.
Synonyms : overrefinement, straining, torture, twisting
Meaning : The mistake of misrepresenting the facts.