Mechanical/engineering term for the rotating part of a motor, generator, or helicopter.
モーターのローターが回転し始めた。
The motor's rotor started spinning.
love egg; egg vibrator
Colloquial term for a small, egg-shaped vibrator; often used in adult contexts.
彼女はローターをこっそり買った。
She secretly bought a love egg.
The helicopter's rotor is spinning at high speed.
I repaired it by replacing the motor's rotor.