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wood of any of various alder trees; resistant to underwater rot; used for bridges etc alder
device (trade name Aqua-Lung) that lets divers breathe under water; scuba is an acronym for self-contained underwater breathing apparatus Aqua-Lung , aqualung , scuba
breathing apparatus, underwater aqualung
underwater breathing apparatus aqualung , scuba
skilled worker who can live in underwater installations and participate in scientific research aquanaut , oceanaut
underwater researcher aquanaut , oceanaut
underwater swimmer equipped with a face mask and foot fins and either a snorkel or an air cylinder aquanaut , skin-diver
tank or pool or bowl filled with water for keeping live fish and underwater animals aquarium , fish tank , marine museum
navigable deep diving vessel for underwater exploration bathyscape , bathyscaph , bathyscaphe
underwater research vessel bathyscaphe , diving bell
spherical deep diving apparatus (lowered by a cable) for underwater exploration bathysphere
large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges beaver
national park in Florida having underwater coral reefs and marine life Biscayne National Park
bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards buoy
tropical fish with huge fanlike pectoral fins for underwater gliding; unrelated to searobins butterflyfish , flying gurnard , flying robin
underwater construction structure caisson
watertight chamber for underwater construction cofferdam
French underwater explorer (born in 1910) Cousteau , Jacques Costeau , Jacques Yves Costeau
someone who works underwater diver , frogman , underwater diver
diving apparatus for underwater work; has an open bottom and is supplied with compressed air diving bell
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