- Acid precipitation dropping as rainfall.
- Rain which is unusually acid (pH of not as much as the natural selection of 5 to 6); caused primarily by atmospheric air pollution with sulphur dioxide and nitrogen compounds.
- rain containing acids that kind in the atmosphere when commercial gasoline emissions (especially sulfur dioxide and nitrogen oxides) match liquid
Sentence for "acid rain"
Hypernym for "acid rain"
Urban Dictionary for "acid rain"