Определение crossbuck в Английский Язык Английский Язык словарь
A crossbuck is a sign composed of two slats of wood or metal of equal length, fastened together on a pole in a saltire formation (resembling the letter "x"). Crossbucks are usually used as traffic signs to indicate level railway crossings, sometimes supplemented by electrical warnings of flashing lights, a bell, and/or a metal arm that descends to block the road and prevent traffic from crossing the railroad