The rotary, rather than propulsive, motion produced by a propeller. / (mechanics) The rotation of the inner and outer parts of a bearing race.

(aviation, chiefly US) a rotating location light installed at an airport, allowing the type of airport to be determined by the color and speed of the rotation.

(mathematics) A method of finding a solution to a mathematical problem in Minkowski space from a solution to a related problem in Euclidean space by means of a transformation that substitutes an imaginary-number variable for a real-number variable.

plural of axis of rotation

rotational period

plural of optical rotation

plural of rotating beacon

plural of rotation period

plural of Wick rotation

(physics) An interaction between a polarized electromagnetic pulse, such as a beam of light, and a magnetic field, in which the plane of polarization is rotated in proportion to the intensity of the component of the magnetic field in the direction of travel of the pulse.