Rotatory /(?)/

Ro·ta·to·ry

Rotatory

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

Rotatory

n.
  1. A rotifer. (Zool.) [R.]