1) Convolution 2) Rotation 1) Rotary motion 2) Rotation 
anything winding or sinuous
• (n.) A roundabout procedure; a circumlocution. • (n.) The act of rolling round; the state of being rolled. • (n.) A thing rolled round another.
Cir`cum·vo·lu'tion noun [ See Circumvolve .] 1. The act of rolling round; the state of being rolled. 2. A thing rolled round another. Arbuthnot. 3. A roundabout procedure; a circumlocution. « He had neither time nor temper for sentimental circumvolut...
[n] - the act of turning or winding or folding around a central axis
circumvolution 1. A turning or winding movement around a central axis. 2. An act of turning, coiling, or folding around a center, a core, or an axis. 3. A single turn, coil, or fold; a convolution.
noun the act of turning or winding or folding around a central axis
the act of rolling or turning around: planetary circumvolution. · a single complete turn or cycle. · a winding or folding about something: the circumvolutions of a boa. · a fold so wound: the circumvolution of a snail shell. · a winding in a sinuous course; a sinuosity: the circumvolutions of the river. · a roundabout course...