ozone layer   (TTS Sound)

The ozone_layer has 1 Senses.

• ozone layer, ozonosphere
• オゾン層
• a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
• 成層圏の中の（高度約20マイル）層で、太陽からの紫外線の大部分を防ぐ濃度のオゾンを含む