1. (

• seaplane ,
• hydroplane

) an airplane that can land on or take off from water; "the designer of marine aircraft demonstrated his newest hydroplane" ;

2. (

• hydrofoil ,
• hydroplane ,

) a speedboat that is equipped with winglike structures 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" ;

1. (

• hydroplane ,
• seaplane

) glide on the water in a hydroplane ;