[noun] an airplane that can land on or take off from water; "the designer of marine aircraft demonstrated his newest hydroplane" Synonyms:seaplane
[noun] 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" Synonyms:hydrofoil
[verb] glide on the water in a hydroplane Synonyms:seaplane
