Meaning of CONVOLUTION in English

CONVOLUTION

/ ˌkɒnvəˈluːʃn; NAmE ˌkɑːn-/ noun [ usually pl. ] ( formal )

1.

a thing that is very complicated and difficult to follow :

the bizarre convolutions of the story

2.

a twist or curve, especially one of many :

the convolutions of the brain

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WORD ORIGIN

mid 16th cent.: from medieval Latin convolutio(n-) , from convolvere roll together, from con- together + volvere roll.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.