Definitions

1. adjective

relating to or involving rotation, or the movement of an object around a central point.

“The rotational speed of the engine was crucial for its performance.”

2. noun

a rotation or movement of an object around a central point.

“The rotational motion of the planets in our solar system is a fascinating topic in astronomy.”

3. noun

a machine or device that changes the direction of motion of an object or fluid, typically using gears or other mechanical means.

“The rotational pump was used to circulate coolant through the engine.”