SNORKEL

I. noun Etymology: German Schnorchel Date: 1944 a tube housing air intake and exhaust pipes for a submarine's diesel engine that can be extended above the water's surface so that the engines can be operated while the submarine is submerged, any of various devices (as for an underwater swimmer) resembling a ~ in function, II. intransitive verb (~ed; ~ing) Date: 1949 to operate or swim submerged with only a ~ above water, ~er noun