Meaning of SNORKEL BREATHER

WordNet Dictionary
	Definition:		[n]  air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
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	Synonyms:		breather, schnorchel, schnorkel, snorkel
	See Also:		air duct, air passage, airway, pigboat, sub, submarine, U-boat