articulated

Etymology

verb

1. simple past and past participle of articulate

adj

1. Constructed with one or more pivoted joints which allow bending of an otherwise rigid structure.
2. 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. October 23 2019, “Testing begins as Merseyrail moves closer to new '777s'”, in Rail, page 29
3. (grammar, linguistics) 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. 1961 July, J. Geoffrey Todd, “Impressions of railroading in the United States: Part Two”, in Trains Illustrated, page 419