Top Definition
The control surfaces found on the outboard sections of an airplane's wing. They move up and down and control the roll of the airplane, turning it.

Aileron is from the French for "Little wing."
Before every flight, I check the ailerons to make sure they are working properly.
by Athene Airheart May 15, 2004

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Plural for aileron. Part of an airplane's wing.
It is very hard to turn an airplane if you don't use ailerons.
by Athene Airheart May 15, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

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Lotsa space for your liquids.

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Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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