noun
- Rain containing acids that form in the atmosphere when industrial gas emissions (especially sulfur dioxide and nitrogen oxides) combine with water.
- synonyms: acid precipitation
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). acid rain. Retrieved September 22, 2026, from http://smartdefine.org/acid_rain/definitions/1247184 |
| Chicago | WordNet. 2010. "acid rain" http://smartdefine.org/acid_rain/definitions/1247184 (accessed September 22, 2026). |
| Harvard | WordNet 2010, acid rain, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/acid_rain/definitions/1247184>. |
| MLA | WordNet. "acid rain" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/acid_rain/definitions/1247184> |