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
Recent Examples on the Web
Although not new, a second approach, called nacelle testing,includes simulating wind fields, rotor blades, and the electrical grid, which collectively allows researchers to simulate various wind and grid conditions.
—
IEEE Spectrum, 3 Apr. 2024
About a decade later, Rolex created a dial that would continuously wind on its own—a patented perpetually ticking rotor that the brand is known and loved for to this day.
—Alexis Bennett Parker, Vogue, 13 Mar. 2024
The Army stated the important attributes were a 40-ft (12.2-m) rotor diameter, a 14,000-lb (6,350-kg) gross weight and cruise speeds of 180 kt (330 km/h) or above.
—Mike Hirschberg, Forbes, 1 Mar. 2024
Following a flight on January 18, at least one of the helicopter’s rotor blades was damaged during landing.
—Will Sullivan, Smithsonian Magazine, 26 Jan. 2024
The rotors on both watches are engraved with the Vuitton floral monogram.
—Carol Bresler, Robb Report, 13 Mar. 2024
High-performance sports cars will also use iron brake rotors but often utilize aluminum calipers with multiple pistons.
—Michael Harley, Forbes, 28 Feb. 2024
Though porpoises were near the turbines 344 times during that time, only one animal passed through the rotor area — and that was while the rotors were stationary.
—Discover Magazine, 16 Feb. 2024
Photo : Honda Honda VTOL Mobility behemoth Honda is leveraging its extensive knowledge from its HondaJet to develop a unique tiltrotor VTOL, with eight rotors for vertical lift and two rotors for horizontal thrust.
—Dan Sloat, Robb Report, 26 Feb. 2024
IEEE Spectrum, 3 Apr. 2024
About a decade later, Rolex created a dial that would continuously wind on its own—a patented perpetually ticking rotor that the brand is known and loved for to this day.
—Alexis Bennett Parker, Vogue, 13 Mar. 2024
The Army stated the important attributes were a 40-ft (12.2-m) rotor diameter, a 14,000-lb (6,350-kg) gross weight and cruise speeds of 180 kt (330 km/h) or above.
—Mike Hirschberg, Forbes, 1 Mar. 2024
Following a flight on January 18, at least one of the helicopter’s rotor blades was damaged during landing.
—Will Sullivan, Smithsonian Magazine, 26 Jan. 2024
The rotors on both watches are engraved with the Vuitton floral monogram.
—Carol Bresler, Robb Report, 13 Mar. 2024
High-performance sports cars will also use iron brake rotors but often utilize aluminum calipers with multiple pistons.
—Michael Harley, Forbes, 28 Feb. 2024
Though porpoises were near the turbines 344 times during that time, only one animal passed through the rotor area — and that was while the rotors were stationary.
—Discover Magazine, 16 Feb. 2024
Photo : Honda Honda VTOL Mobility behemoth Honda is leveraging its extensive knowledge from its HondaJet to develop a unique tiltrotor VTOL, with eight rotors for vertical lift and two rotors for horizontal thrust.
—Dan Sloat, Robb Report, 26 Feb. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rotor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Rotor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rotor. Accessed 19 Apr. 2024.
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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