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acid dust

American

noun

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

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acid dust

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023