See Also: hydroplane(dictionary)
Hydroplane - Powerboating(gambling)
hydroplane 1, noun(dictionary)
hydroplane 2, verb(dictionary)
Three-Point Hydroplane - Powerboating(gambling)

hydroplane (iou)



hydroplane noun & verb. E20.
[from HYDRO- + PLANE noun3 (in sense 2 after aeroplane).]
A. noun.
A movable horizontal vane (usu. one of several) projecting from the side of a submarine and used to steer it vertically and to provide stability. E20.
A motor boat with a specially shaped bottom to make it rise partly out of the water at speed. Also = HYDROFOIL 2. Also hydroplane boat. E20.
A seaplane. Cf. HYDRO-AEROPLANE. obsolete exc. Hist. E20.
b. verb intrans.
Travel in a hydroplane boat. E20.
Of a boat or seaplane: rise out of the water at speed (without leaving it). E20.
Of a motor vehicle: aquaplane. Chiefly US. M20.