air horn


Definition of air horn

1 : a carburetor main air intake
2 : a pneumatic horn (as on a motor vehicle or diesel locomotive)

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First Known Use of air horn

1873, in the meaning defined at sense 2

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Time Traveler for air horn

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The first known use of air horn was in 1873

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Cite this Entry

“Air horn.” Dictionary, Merriam-Webster, Accessed 22 May. 2022.

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