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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
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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
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
Britannica.com: Encyclopedia article about acid rain
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Merriam-Webster unabridged
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