Rotatory

a.	1.	Turning as on an axis; rotary.
	2.	Going in a circle; following in rotation or succession; as, rotatory assembles.
	3.	(Opt.) Producing rotation of the plane of polarization; as, the rotatory power of bodies on light. See the Note under polarization.
n.	1.	(Zool.) A rotifer.

Adj.

1.

rotatory - of or relating to or causing rotation

gyration, revolution, rotation