See Also: rotor(dictionary)
rotor(dictionary)
Rotor's syndrome(medicine)
Rotor, Arturo(medicine)
Savonius rotor(dictionary)
Brake Rotor - Motor Sports(gambling)

rotor (iou)



rotor noun. L19.
[Irreg. for ROTATOR.]
Math. A vector quantity representing a rotation rather than a linear displacement. Now rare. L19.
A rotating part in a motor or dynamo, esp. a rotor arm. E20.
A rotating vertical cylinder that can be mounted on a ship, using the Magnus effect to provide auxiliary propulsion. E20.
A hub with a number of radiating aerofoils that is rotated in an approximately horizontal plane to provide the lift for a rotary-wing aircraft. M20.
The rotating vessel in a centrifuge. M20.
A part of an encoding or decoding machine, rotation of which changes numerous electric circuits and thereby the code. M20.
A large eddy in which the air circulates about a horizontal axis, esp. in the lee of a mountain. M20.
Comb.: rotor arm the rotating part of the distributor of an internal-combustion engine which successively makes and breaks electrical contacts so that each spark-plug fires in turn; rotor blade each of the radiating aerofoils of the rotor of a rotary-wing aircraft; rotor cloud a turbulent cloud in a rotor (sense 7); rotor disc (a) the space swept out by rotor blades as they rotate; (b) a rotor head; rotor head, rotor hub the rotating structure at the upper end of a shaft of a rotary-wing aircraft, to which the rotor blades are attached; rotor ship a ship whose auxiliary motive power is derived from cylindrical rotors (sense 3).