BLOWHOLE — Definition of BLOWHOLE
noun
1
The spiracle, on the top of the head, through which cetaceans breathe.
2
A vent for the escape of gas.
3
A top-facing opening to a cavity in the ground very near an ocean's shore, leading to a marine cave from which wave water or bursts of air are expelled.
4
An unintended cavity filled with air in a casting product.
verb
1
To fill or be filled with air in an unintended cavity.
📚 Source: en.wiktionary.org/wiki/blowhole
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