acid rain

noun
Updated on: 10 May 2018

Definition of acid rain

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

Examples of acid rain in a Sentence

  1. trees damaged by acid rain

Recent Examples of acid rain from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acid rain.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of acid rain

1845

in the meaning defined above

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ACID RAIN Defined for English Language Learners

acid rain

Definition of acid rain for English Language Learners

  • : rain that contains dangerous chemicals because of smoke from cars and factories


Medical Dictionary

acid rain

noun

medical Definition of acid rain

: acid precipitation especially in the form of rain

Learn More about acid rain


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