articulated

verb

1. (form-of, participle, past)simple past and past participle of articulate

adj

1. (not-comparable)Constructed with one or more pivoted joints which allow bending of an otherwise rigid structure.
2. (not-comparable)Of a vehicle, composed of component parts each with its own wheels and chassis, e.g. an articulated lorry, articulated bus, or certain kinds of streetcars and trains.

   “The trains are a fixed formation of four articulated vehicles, and are fitted with large vestibules, wide aisles, open gangways and air-conditioning.”

3. (not-comparable)Qualified by an article

noun

1. An articulated vehicle, such as a locomotive.

   “The leading engine was one of the Class Y6 2-8-8-2 compound articulateds, [...] The stack noise of one of these great brutes slogging up a grade was quite unforgettable.”