Lewis Short
contortÄo (noun F) : contorqueo. *
* A whirling round: dexterae,Auct. Her. 4, 19, 26 fin.
* An intertwining, involving; intricacy, complication; of discourse, in the plur.: contortiones orationis, * Cic. Fat. 9, 17; Aug. Retract. 1, 50.
Charlton T. Lewis, Charles Short, A Latin Dictionary