acid rain
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English[edit]
Etymology[edit]
Coined in 1872 by Scottish chemist Robert Angus Smith.
Pronunciation[edit]
Audio (US) (file)
Noun[edit]
acid rain (countable and uncountable, plural acid rains)
- (inorganic chemistry, organic chemistry) Rain which is unusually acidic (pH of less than the natural range of 5 to 6); caused mainly by atmospheric pollution with sulphur dioxide, carbon dioxide and nitrogen compounds.
Translations[edit]
unusually acidic rain
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