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acid precipitation
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noun
meteorological precipitation that is relatively acidic.
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Which sentence is correct?
Compare acid rain.
Origin of acid precipitation
First recorded in 1975–80
Words nearby acid precipitation
acidometer, acidophil, acidophilic, acidophilus milk, acidosis, acid precipitation, acid radical, acid rain, acid reflux, acid rock, acid salt
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Scientific definitions for acid precipitation
acid precipitation
Any form of precipitation, including rain, snow, hail, fog, or dew, that is high in acid pollutants, especially sulfuric and nitric acid. Acid precipitation has a pH of less than 5.6 (the normal acidity of unpolluted atmospheric water) and is often less than pH 5.0. Also called acid rain See Note at acid deposition.
The American Heritage® Science Dictionary
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