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n.1.Circular motion in a direction contrary to some other circular motion.
References in periodicals archive ?
The simplified aerodynamic configuration of battery powered tailsitter consists of four main parts, as shown in Figure 1, fuselage, straight rectangular wing, twin contrarotation propellers, and twin elevons located on the trailing edge.
Because the tailsitter was driven by twin contrarotation propellers, as shown in Figure 1, each propeller needs to provide a half of the required thrust.
On the other, she has to face the contrarotation of public opinion and the cycles of Christian identity, particularly vis-a-vis the growing power of the monastic movement.