What does "convolution" mean?

Convolution: The state of being rolled upon itself, or rolled or doubled together; a tortuous or sinuous winding or fold, as of something rolled or folded upon itself. Blackmore.

Additional senses

  1. 2.(Anat.) An irregular, tortuous folding of an organ or part; as, the convolutions of the intestines; the cerebral convolutions. See Brain.

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