rotor.
A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
Meaning & usage
A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump.
A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump. In a disc brake, the metal disc attached to the wheel hub.
A rotating part of a mechanical device; for example, in an electric motor, generator, alternator, or pump. The wing of a helicopter or other rotary wing aircraft (e.g., heli-type drone).
A type of powerful horizontal-axis atmospheric vortex generated by the interaction of strong winds with mountainous terrain.
A quantity having magnitude, direction, and position.
The set of cells within an oscillator that switch between being alive and dead over the course of the oscillator's period.
An amusement park and carnival ride consisting of a rotating cylindrical chamber in which centrifugal force adheres riders to the wall as the floor drops away, creating a sensation of defying gravity.
Where this word comes from
From an irregular clipping of rotator, originally in mathematics, coined by English mathematician and philosopher William Kingdon Clifford based on vector, see quotations. Doublet of rota and ruote.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.