Определение open-top в Английский Язык Английский Язык словарь
(also open-topped) (of a vehicle) not having a roof or having a folding or detachable roof
An open-top bus has no roof, so that the people sitting on the top level can see or be seen more easily. An open-top car has no roof or has a roof that can be removed. The team drove through the streets of Leeds city centre in an open-top bus