ärˌtikyəˈläd.ə, -ād.ə noun plural
Usage: capitalized
Etymology: New Latin, from neuter plural of articulatus jointed, from Latin, uttered distinctly, past participle of articulare
1. : one of the four subkingdoms in the classification of Cuvier comprising invertebrates having the body composed of a series of ringlike segments (as arthromeres, somites, or metameres)
2. : a class or other division of Brachiopoda comprising forms with the valves hinged and usually bearing teeth — compare inarticulata