Convolution /(?)/

Con·vo·lu·tion

Convolution

n.
  1. The act of rolling anything upon itself, or one thing upon another; a winding motion.
    O'er the calm sea, in convolution swift, The feathered eddy floats.
  2. 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.
  3. An irregular, tortuous folding of an organ or part; as, the convolutions of the intestines; the cerebral convolutions. See Brain. (Anat.)