n. 1 a nostril in the top of the head of a whale or dolphin or porpoise. It is used to breathe.
Whales breathe through their blowhole.
Whales breathe through their blowhole.
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The blowhole of a marine mammal is an example of a sphincter.
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What happens to an orca's blowhole under water?
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nostril in the top of head; used to breathe; vent
mouth
2 syllables
blow-hole
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