See Also: ozone layer(dictionary)
ozone layer(encyclopedia)
ozone(dictionary)
ozone(dictionary)
ozone(encyclopedia)
ozone(medicine)
ozone-friendly(dictionary)
a layer(medicine)
S layer(medicine)
still layer(medicine)
ozone layer (oh)
n [singular]
a layer of gases in the sky that prevents harmful radiation from the sun from reaching the Earth
::the hole in the ozone layer
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