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volcanic winter noun

  /vɑlˌkænɪk ˈwɪntəɹ/ , /vɒlˌkænɪk ˈwɪntə/ , /vɔlˌkænɪk ˈwɪntəɹ/ , [-ˈwɪnəɹ]
  • (climatology) A reduction in global temperatures caused by volcanic ash and droplets of sulfuric acid obscuring the Sun and raising Earth's albedo (increasing the reflection of solar radiation) after a large, particularly explosive volcanic eruption.
 火山の冬
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