noun pl \är-ˈthräp-əd-ə\

Definition of ARTHROPODA

: a phylum of invertebrate animals (as insects, arachnids, and crustaceans) having a segmented body and jointed appendages, usually a shell of chitin molted at intervals, and an anterior brain dorsal to the alimentary canal and connected with a ventral chain of ganglia
ar·thro·pod \ˈär-thrə-ˌpäd\ adjective or noun
ar·throp·o·dan \är-ˈthräp-əd-ən\ adjective

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