Definitions for: Hydroplane


[n] a speedboat that is equipped with hydrofoils that lift it so that it skims the water at high speeds; "the museum houses a replica of the jet hydroplane that broke the record"
[n] an airplane that can land on or take off from water; "the designer of marine aircraft demonstrated his newest hydroplane"
[v] glide on the water in a hydroplane



Webster (1913) Definition: Hy"dro*plane, n. [Pref. hydro-, 1 + plane.]
1. A plane, or any of a number of planes, projecting from the
hull of a submarine boat, which by being elevated or
depressed cause the boat, when going ahead, to sink or
rise, after the manner of an a["e]roplane.

2. A projecting plane or fin on a gliding boat to lift the
moving boat on top of the water; also, a gliding boat.


Hy"dro*plane, v. i.
Of a boat, to plane (see Plane, below).

Synonyms: hydrofoil, seaplane, seaplane

See Also: aeroplane, airplane, aviate, floatplane, fly, flying boat, glide, pilot, plane, pontoon plane, speedboat

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