amphibious

able to live both on land and in the water, as frogs, toads, etc.

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

amphibious

[‚am′fib·ē·əs]

(biology)

Capable of living both on dry or moist land and in water.

(mechanical engineering)

Said of vehicles or equipment designed to be operated or used on either land or water.

(ordnance)

A military operation conducted by coordinated action of land, sea, and air forces.

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References in periodicals archive

Navy's emphasis on improving its surge capabilities, landing troops amphibiously, and supporting them indefinitely from the sea proved critical to sustaining the relief effort across the region and in saving lives.

International institute for strategic studies: remarks as delivered by Secretary of Defense Donald H. Rumsfeld, Shangri-La Hotel, Singapore, Saturday, June 4, 2005

For this creature, thought to have died out with the dinosaurs, was one of those prehistoric fish, which, inching out of the sea upon four stumpy, fin-fashioned legs, and tentatively gulping in air, amphibiously conquered dry land -- to evolve over the aeons into reptiles, birds, mammals and, ultimately, man.

THE WORLD'S OLDEST LIVING FISH

Marine Truncatella live amphibiously in and under mats of cast-up vegetation at the top of the intertidal zone on tropical and semitropical coasts throughout the world.

Independent evolution of terrestriality in Atlantic truncatellid gastropods

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