<p><strong>Noun</strong></p><ul><li>the act of rolling or turning around: planetary circumvolution</li><li>a single complete turn or cycle</li><li>a winding or folding about something: the circumvolutions of a boa</li><li>a fold so wound: the circumvolution of a snail shell</li><li>a winding in a sinuous course; a sinuosity: the circumvolutions of the river</li><li>a roundabout course or procedure, or an instance of such: The speaker's circumvolutions bored the audience to tears</li></ul>