What does "rotatory" mean?

Rotatory: Going in a circle; following in rotation or succession; as, rotatory assembles. Burke.

Additional senses

  1. 2.(Opt.) Producing rotation of the plane of polarization; as, the rotatory power of bodies on light. See the Note under polarization. Nichol.
  2. 3.A rotifer. [R.] Kirby.

Sources