| schnorkel | (noun) air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time | Synonyms: breather, schnorchel, snorkel, snorkel breather |
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| snorkel | (noun) air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time | Synonyms: breather, schnorchel, schnorkel, snorkel breather |
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| (noun) breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water | - |