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1. (n.) air hole
an opening to admit or discharge air.
2. air hole
an opening in the frozen surface of a river or pond.
Etymology: (1760–70)
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| Definition of 'air hole' |
Princeton's WordNet |
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1. (noun) air pocket, pocket, air hole
a local region of low pressure or descending air that causes a plane to lose height suddenly
2. (noun) air hole
a hole that allows the passage of air
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| Definition of 'air hole' |
Webster Dictionary |
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1. air hole
a hole to admit or discharge air; specifically, a spot in the ice not frozen over
2. air hole
a fault in a casting, produced by a bubble of air; a blowhole
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Definitions of air hole 
