acid rain

noun

: rain that has increased acidity caused by environmental factors (such as atmospheric pollutants)

Examples of acid rain in a Sentence

trees damaged by acid rain
Recent Examples on the Web Stopping acid rain: An international problem Acid rain is primarily caused when sulfur dioxide, released into the air by the burning of coal, high-sulfur oil and smelting and refining of metals, interacts with rain or fog. Alexander E. Gates, The Conversation, 23 Sep. 2024 Previously, scientists thought carbon dioxide belched out by volcanic activity triggered a sudden warming of the planet, acid rain and ocean acidification. Ashley Strickland, CNN, 14 Sep. 2024 Most notable are those that firmed up the causal link between ‘acid rain’ and eggshell malformation in birds. Jules Howard, TIME, 4 Sep. 2024 But sulfur dioxide might also lead to acid rain, worsen the Antarctic ozone hole, or have other unforeseen consequences. Justine Calma, The Verge, 12 Aug. 2024 See all Example Sentences for acid rain 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'acid rain.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1845, in the meaning defined above

Time Traveler
The first known use of acid rain was in 1845

Dictionary Entries Near acid rain

Cite this Entry

“Acid rain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acid%20rain. Accessed 9 Oct. 2024.

Kids Definition

acid rain

noun
: rain with increased acidity that is caused by environmental factors (as atmospheric pollutants)

Medical Definition

acid rain

noun
: acid precipitation especially in the form of rain

More from Merriam-Webster on acid rain

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!