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aileron
1 ENTRIES FOUND:
plural ailerons
plural ailerons
Learner's definition of AILERON
[count] technical
: a part of an airplane wing that can be moved up or down to cause the airplane to turn副翼（飞机机翼上一小块能上下移动的翼面）— see picture at airplane
aileron
noun
ai·le·ron ˈā-lə-ˌrän 
: a movable airfoil at the trailing edge of an airplane wing that is used for imparting a rolling motion especially in banking for turns see airplane illustration
Example Sentences
Recent Examples on the Web Among the pieces recovered are an engine blade and engine pylon, the left and right horizontal stabilizers, pieces of the wings and the plane's aileron autopilot actuators. 
Karson Yiu, ABC News, 24 Mar. 2022 The trip — smooth but for the aileron rolls — lasted just nine minutes. Michael Cabanatuan, San Francisco Chronicle, 8 Oct. 2021 Whitcomb began a series of wind tunnel tests using a model of a DC-10, evaluating winglets at different airspeeds with different flap and aileron configurations. Eric Tegler, Popular Mechanics, 5 July 2020 In other words, the company still needs to see how the aircraft performs in moments of flight failure with the absence of a traditional airplane’s ailerons, flaps, spoilers, elevators, and even a tail. Caroline Delbert, Popular Mechanics, 13 Feb. 2020 Aviation history is littered with fatal crashes in which birds gunked up engines or knocked ailerons askew. Brendan I. Koerner, Wired, 24 Jan. 2020 For example, during takeoff and landing, the pilot of an airliner like a Boeing 747 will extend the flaps and slats on the wings to create more lift, and moving surfaces such as ailerons permit the plane to roll and turn. Rob Verger, Popular Science, 16 Jan. 2020 The left wing aileron trim tab remained intact and its pushrod was connected but bent. BostonGlobe.com, 16 Oct. 2019 The trip back from Hawaii achieved better fuel savings because of changes to the software that enabled the airplane to use the rudder to keep its position, as opposed to using the airplane's ailerons. Joe Pappalardo, Popular Mechanics, 17 July 2013 See More
Karson Yiu, ABC News, 24 Mar. 2022 The trip — smooth but for the aileron rolls — lasted just nine minutes. Michael Cabanatuan, San Francisco Chronicle, 8 Oct. 2021 Whitcomb began a series of wind tunnel tests using a model of a DC-10, evaluating winglets at different airspeeds with different flap and aileron configurations. Eric Tegler, Popular Mechanics, 5 July 2020 In other words, the company still needs to see how the aircraft performs in moments of flight failure with the absence of a traditional airplane’s ailerons, flaps, spoilers, elevators, and even a tail. Caroline Delbert, Popular Mechanics, 13 Feb. 2020 Aviation history is littered with fatal crashes in which birds gunked up engines or knocked ailerons askew. Brendan I. Koerner, Wired, 24 Jan. 2020 For example, during takeoff and landing, the pilot of an airliner like a Boeing 747 will extend the flaps and slats on the wings to create more lift, and moving surfaces such as ailerons permit the plane to roll and turn. Rob Verger, Popular Science, 16 Jan. 2020 The left wing aileron trim tab remained intact and its pushrod was connected but bent. BostonGlobe.com, 16 Oct. 2019 The trip back from Hawaii achieved better fuel savings because of changes to the software that enabled the airplane to use the rudder to keep its position, as opposed to using the airplane's ailerons. Joe Pappalardo, Popular Mechanics, 17 July 2013 See More Word History
Etymology
borrowed from French, "tip of a bird's wing, fin, aileron of an airplane," going back to Middle French aleron "tip of a bird's wing," from aelle, aile "wing" (going back to Old French ele, going back to Latin āla) + -eron, diminutive suffix, probably from -ier -er entry 2 + -on, diminutive suffix, going back to Latin -ōn-, -ō, suffix of nouns denoting persons with a prominent characteristic (from construal of nouns such as quarteron "a quarter-pound weight" —from quartier "quarter" + -on, diminutive suffix— as if formed from quart "quarter" + -eron) — more at ala
Note: The first print occurrence of aileron in reference to an airfoil used to control roll was probably in the French aeronautics journal L'Aérophile, 16e année, no. 13 (1 juillet 1908), p. 255. The aeronautics journalist Auguste Nicolleau used the word in a description of Louis Blériot's latest airplane, the Blériot VIII. Curiously, a different journalist in the same issue uses aileron for the elevators ("gouvernails de profondeur") of the dirigible République.
First Known Use
1909, in the meaning defined above
Time Traveler
The first known use of aileron was in 1909 Phrases Containing aileron
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