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acid dust

American  

noun

  1. air-polluting particles of dust, usually wind-borne, having high concentrations of acid.


Etymology

Origin of acid dust

First recorded in 1975–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Good places to apply the boric acid dust would be around plumbing lines and other openings that penetrate the wall.

From New York Times • May 29, 2012

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