contortion

Noun
  1. The act of twisting or deforming the shape of something (e.g., yourself) (synset 100405547)
    is a type of: change of shape - an action that changes the shape of something
    same as: deformation
  2. A tortuous and twisted shape or position (synset 113908063)
    "they built a tree house in the tortuosities of its boughs"; "the acrobat performed incredible contortions"
    is a type of: distorted shape, distortion - a shape resulting from distortion
    same as: crookedness, torsion, tortuosity, tortuousness

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