Definitions
1.nounA twist or fold.
2.nounAny of the folds on the surface of the brain.
3.nounThe shape of something rotating; a vortex.
4.nounState or condition of being convoluted.
5.nounA form of moving average.
6.nounA function which maps a tuple of sequences into a sequence of tuples.
7.nounOne 360° turn in a spring or similar helix. A keyring contains 2 convolutions.