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ozone hole
1 ENTRIES FOUND:
ozone hole
(noun)
ozone hole
noun
plural
ozone holes
ozone hole
noun
plural
ozone holes
Britannica Dictionary definition of OZONE HOLE
[
count
]
:
an area of the ozone layer where there is very little ozone
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protocol
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a system of rules that explain the correct conduct and procedures to follow in formal situations
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