hydrobiplane التعريفات والمعاني == English == === Etymology === From hydro- + biplane. === Noun === hydrobiplane (plural hydrobiplanes) (aviation, dated) A hydroaeroplane having two supporting planes. شارك هذه المقالة: Facebook Twitter WhatsApp LinkedIn كلمات ذات صلة hydrobiplanes hydroplane hydrosilane hydroplaned hydrosilanes hydroplanes hydroairplane hydroairplanes hydro-airplane