Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of blowhole is as below...

Blow :: Blow (v. i.) To spout water, etc., from the blowholes, as a whale..

Air Hole :: Air hole () A fault in a casting, produced by a bubble of air; a blowhole..

Blowhole :: Blowhole (n.) An air hole in a casting.

Blowhole :: Blowhole (n.) A nostril or spiracle in the top of the head of a whale or other cetacean.

Blowhole :: Blowhole (n.) A hole in the ice to which whales, seals, etc., come to breathe..

Blowhole :: Blowhole (n.) A cavern in a cliff, at the water level, opening to the air at its farther extremity, so that the waters rush in with each surge and rise in a lofty jet from the extremity..

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