Rotatory
Rotatory , adjective
[Compare French rotatoire. See Rotate, Rotary.]
1.
Turning as on an axis; rotary.
2.
Going in a circle; following in rotation or succession; as, rotatory assembles. — Burke
3.
(Optics) Producing rotation of the plane of polarization; as, the rotatory power of bodies on light. See the Note under polarization. — Nichol
Rotatory , noun
(Zoology) A rotifer. [Rare] — Kirby