1
a
: a part that revolves in a stationary part
a brake rotor
b
: the rotating member of an electrical machine
2
: an assembly of rotating blades that supplies lift or stability for a rotorcraft
Examples of rotor in a Sentence
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Given that on landing its rotors broke off, that's a pretty definitive conclusion.
—
David Szondy, New Atlas, 18 Jan. 2025
More importantly, these in-wheel hub motors, which spin a wheel directly because their rotor is part of the wheel, have intriguing potential to improve performance and vehicle packaging, while greatly reducing moving parts and maintenance.
—IEEE Spectrum, 14 Jan. 2025
Video of the event shows the tank seen from close range by an FPV (distinguished by rotor blades in the field of view at :02- :05 seconds).
—David Hambling, Forbes, 14 Jan. 2025
Seventy-two flights later, NASA finally said goodbye to Ingenuity on April 16 of this year after its rotors sustained damage during a hard landing on the rough Martian terrain.
—Julian Dossett, Space.com, 28 Dec. 2024
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David Szondy, New Atlas, 18 Jan. 2025
More importantly, these in-wheel hub motors, which spin a wheel directly because their rotor is part of the wheel, have intriguing potential to improve performance and vehicle packaging, while greatly reducing moving parts and maintenance.
—IEEE Spectrum, 14 Jan. 2025
Video of the event shows the tank seen from close range by an FPV (distinguished by rotor blades in the field of view at :02- :05 seconds).
—David Hambling, Forbes, 14 Jan. 2025
Seventy-two flights later, NASA finally said goodbye to Ingenuity on April 16 of this year after its rotors sustained damage during a hard landing on the rough Martian terrain.
—Julian Dossett, Space.com, 28 Dec. 2024
See all Example Sentences for rotor
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Cite this Entry
“Rotor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rotor. Accessed 30 Jan. 2025.
Copy CitationKids Definition
rotor
noun
ro·tor
ˈrōt-ər 
1
: a part that rotates in a stationary part (as in an electrical machine)
2
: a complete system of rotating blades that support a helicopter in flight
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