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 The ominous cloud of acid rain hasn’t vanished but rather drifted toward the developing world. Big Think, 24 June 2024 As a pollutant, sulfur dioxide can lead to acid rain. Justine Calma, The Verge, 11 June 2024 Recent decades have already seen broad efforts to reduce sulfur emissions, including regulations dating back to the 1990s to address acid rain, another of its byproducts. Hayley Smith, Los Angeles Times, 9 June 2024 Life on Earth suffered through scorching heat, acid rain, and wildfires. Elizabeth Rayne, Ars Technica, 28 May 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 7 Jul. 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!