different between coiling vs contortion

English

coiling

coiling (plural coilings)

The pattern or motion of something that coils.
- 1854, Herman Melville, The Encantadas
  Holding out her small olive hand before her captain, she said in mild and slowest Spanish, "Senor, I buried him;" then paused, struggled as against the writhed coilings of a snake, and cringing suddenly, leaped up, repeating in impassioned pain, "I buried him, my life, my soul!"
The process of fitting a ship with electromagnetic coils, so that it can be degaussed while travelling.

From Middle French contortion.

contortion (countable and uncountable, plural contortions)

The act of contorting, twisting or deforming something, especially oneself.
A form of acrobatic display which involves the dramatic bending and flexing of the human body.

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