American Dictionary

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Definition blowhole in American English

blowhole noun

[countable] noun
/ˈbloʊˌhoʊl/
1

a hole in the top of the head of an ocean animal such as a whale or dolphin, through which it breathes

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2

a hole in the surface of ice that ocean animals such as whales and seals use to breathe through

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3

a hole in a tunnel through which gases can escape

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Definition blowhole in American English