Con`vo*lu"tion (?), n.
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.
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.
An irregular, tortuous folding of an organ or part; as, the convolutions of the intestines; the cerebral convolutions. See Brain.
© Webster 1913.