Definitions for ozone hole
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Random House Webster's College Dictionary
o′zone hole`(n.)
any part of the ozone layer that has become depleted by atmospheric pollution, resulting in excess ultraviolet radiation passing through the atmosphere.
Category: Meteorology
Origin of ozone hole:
1985–90
Princeton's WordNet
ozone hole(noun)
an area of the ozone layer (near the poles) that is seasonally depleted of ozone
Wiktionary
ozone hole(Noun)
A region of the stratosphere over Antarctica (and a smaller one over the Arctic) that is depleted of ozone in the local spring.
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