rotor

noun

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ro·tor | \ ˈrō-tər

Definition of rotor

1a : 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

More Example Sentences Phrases Containing rotor Learn More About rotor

Examples of rotor in a Sentence

Recent Examples on the Web That side-to-side movement caused the helicopter’s main rotor to strike the flight deck, which in turn led to the helicopter going over the side of the ship. — Andrew Dyer, San Diego Union-Tribune, 7 Sep. 2021 Two Apache helicopter gunships flew low, seeking to scare some people away from the plane or push them off with their powerful rotor wash. — BostonGlobe.com, 17 Aug. 2021 Cartier has created a platinum automatic skeleton watch in which the rotor houses the entire movement—mainspring, escapement, and all. — Charles Curkin, ELLE Decor, 12 Apr. 2022 For this to happen, the rotor rotates in both directions at an irregular speed. — Paige Reddinger, Robb Report, 30 Mar. 2022 And in spite of hitting a top speed of only 250 rpm, the fan is even more well-balanced than the rotor of a turbocharger. — Jonathan M. Gitlin, Ars Technica, 21 Mar. 2022 Videos taken by witnesses showed a rotor blade separating from the first Black Hawk and striking the second Black Hawk, according to a Utah National Guard spokesman. — Scott D. Pierce, The Salt Lake Tribune, 2 Mar. 2022 The 21-year-old sailor threw off the protective helmet everyone wears on the flight line and ran toward the spinning rear tail rotor of an HM-60S helicopter. — Washington Post, 15 Nov. 2021 This approach also gives the engineers an extra knob to turn, as the power electronics can continuously alter the strength of this unique rotor's magnetic field. — Dan Edmunds, Car and Driver, 1 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rotor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.