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18.216.126.33

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1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Hy·dro-a·ër·o·plane. Aëronautics An aëroplane with a boatlike or other understructure that enables it to travel on, or to rise from the surface of, a body of water by its own motive power; -- now usually referred to as a seaplane. [obsolescent]