Jointed. An articulated rod is one that has a moveable joint which permits its shape to go from perfectly straight to right angle. Some large buses have an accordion-like section in the middle of the body which allows the bus to turn sharply around corners as it articulates at that part of the bus.
Meaning of ARTICULATED in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012