DICT.TW Dictionary Taiwan

 hy·dro·plane /ˈhaɪdrəˌplen/
 水上飛機,水上滑艇,水平舵

 Hy·dro·plane n.
 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 aëroplane.
 2.  A projecting plane or fin on a hydroplane3 to lift the moving boat on top of the water; also, a gliding boat.
 3.  a powered surface boat fitted with planes (hydroplanes2) projecting below the hull, designed to lift the boat, when moving rapidly, so that the hull itself is lifted out of the water and the boat is supported by the hydrodynamic forces of the water on the hydroplanes2, thus permitting higher speeds; formerly called a gliding boat.

 Hy·dro·plane, v. i.
 1. Of a boat, to move through water while supported by hydroplanes3 (see {hydroplane3}, above).
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 hydroplane
      n 1: an airplane that can land on or take off from water; "the
           designer of marine aircraft demonstrated his newest
           hydroplane" [syn: seaplane]
      2: 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"
         [syn: hydrofoil]
      v : glide on the water in a hydroplane [syn: seaplane]