acid rain

名词 n.
中文释义

英文释义

名词 n.
  1. Rain which is unusually acidic (pH of less than the natural range of 5 to 6); caused mainly by atmospheric pollution with sulphur dioxide, carbon dioxide and nitrogen compounds. countable,uncountable
    — Acid rain forms when water in the atmosphere condenses on particles containing acid-forming pollutants, such as sulfate produced by the burning of fossil fuels and nitrogen oxides from automobile exhausts.

词形变化

acid rains plural

词源

Coined in 1872 by Scottish chemist Robert Angus Smith.
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