acid rain
English
editEtymology
editCoined in 1872 by Scottish chemist Robert Angus Smith.
Pronunciation
editNoun
editacid rain (countable and uncountable, plural acid rains)
- 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.
- Hypernym: acid precipitation
Translations
editunusually acidic rain
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