stratosphere

Noun
  1. The atmospheric layer between the troposphere and the mesosphere (synset 109471239)
    is a type of: layer - a relatively thin sheetlike expanse or region lying over or under another
    has: ozone layer, ozonosphere - a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
    is a part of: atmosphere - the envelope of gases surrounding any celestial body

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