distorter

/dɪˈstɔrtər/
noun
  1. A person or thing that changes something from its natural or true form, sound, or meaning.
    • He is a known distorter of facts, always twisting the truth to fit his story.
    • That old amplifier is a distorter — it makes every guitar sound fuzzy and strange.
    • The funhouse mirror acts as a distorter, making everyone look comically different.
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