Englishfor English speakers
distortion
Noun
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A distortion is a change to the original (or normal) shape (or characteristic) of something. It can apply to objects, images, sounds, or information.
He told her the story, but it was a distortion of the truth.
ellipse
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noun
a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it
the sums of the distances from the foci to any point on an ellipse is constant