The word "rotational" refers to something that involves or relates to rotation. It implies the movement or turning of an object around a central axis or point. Full definition
The system is extremely rigid — again, as it must be for this engine's level of rotational speed. (bmwusanews.com)
The importance of rotational movement and joint articulation as it applies to functional exercise and everyday motion. (weckmethod.com)
The variable M differential lock responds to differences in rotational speeds in the right and left rear wheel, redirecting drive torque within a fraction of a second. (ausmotive.com)