aerial drainage

noun

Definition of aerial drainage

: the downslope flow of surface air caused by its relatively high density produced by contact cooling, especially prevalent on still clear nights in hilly or mountainous terrain

First Known Use of aerial drainage

1886, in the meaning defined above

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Learn More About aerial drainage

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The first known use of aerial drainage was in 1886

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Dictionary Entries Near aerial drainage

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Cite this Entry

“Aerial drainage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aerial%20drainage. Accessed 6 Oct. 2022.

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