[{"Bold_text": "noun", "List Items": ["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 or procedure, or an instance of such:The speaker's circumvolutions bored the audience to tears."]}]