Определение ozone hole в Английский Язык Английский Язык словарь
A region of the stratosphere over Antarctica (and a smaller one over the Arctic) that is depleted of ozone in the local spring
Callis says that the ozone hole now developing over the Antarctic is as deep as last year's hole, but seems to cover a smaller area.
A region of marked thinning of the ozone layer in high latitudes, chiefly in winter, due to CFCs and other atmospheric pollutants
an area of the ozone layer (near the poles) that is seasonally depleted of ozone
An area of the ozone layer, such as the large area over Antarctica or the smaller area over the North Pole, that periodically becomes depleted of ozone