rotor

noun7

1. •
   A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
2. •
   In a disc brake, the metal disc attached to the wheel hub.
3. •
   The wing of a helicopter or other rotary wing aircraft (e.g., heli-type drone).
4. •
   An amusement park and carnival ride consisting of a rotating cylindrical chamber in which centrifugal force adheres riders to the wall as the floor drops away, creating a sensation of defying gravity.
5. •
   A type of powerful horizontal-axis atmospheric vortex generated by the interaction of strong winds with mountainous terrain.
6. •
   A quantity having magnitude, direction, and position.
7. •
   The set of cells within an oscillator that switch between being alive and dead over the course of the oscillator's period.

   • The following figure shows examples of the most versatile class of these oscillators. The first emulates the p10 shown above; the second has period 62 and a rotor of size 10. — 1997