極きょく成せい層そう圏けん雲うん

noun

polar stratospheric cloud

Technical term used in meteorology and atmospheric science. Refers to clouds that form in the winter polar stratosphere at very low temperatures.

• 極きょく成せい層そう圏けん雲うんはオゾン層そう破は壊かいに関かん係けいしている。

  Polar stratospheric clouds are involved in ozone layer depletion.