Any of numerous invertebrate animals of the phylum Arthropoda, including the insects, crustaceans, arachnids, and myriapods, that are characterized by a chitinous exoskeleton, a segmented body, and jointed appendages.
[From New Latin Arthropoda, phylum name : ARTHRO- + New Latin -poda, -pod.]
ar·thropo·dan (är-thrŏpə-dən), ar·thropo·dal (-dəl) adj.
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