manˌdibyəˈläd.ə, -lād.ə noun plural
Usage: capitalized
Etymology: New Latin Mandibulata, from mandibul- + -ata
in some classifications : a subphylum or superclass of Arthropoda comprising arthropods with mandibles on the second postoral somite and usually preoral true antennae and including the crustaceans, myriopods, insects, and a few related forms — compare chelicerata , trilobita