бөлүүчү маркер
Кыргызско-английский словарь компьютерных терминов Microsoft (2016)split box (noun)
A special control added to a window, typically adjacent to the scroll bar, that allows a user to split a window or adjust a window split.
A special control added to a window, typically adjacent to the scroll bar, that allows a user to split a window or adjust a window split.