[{"Bold_text": "noun", "List Items": ["any invertebrate of the phylum Arthropoda, having a segmented body, jointed limbs, and usually a chitinous shell that undergoes moltings, including the insects, spiders and other arachnids, crustaceans, and myriapods."]}, {"Bold_text": "adjective", "List Items": ["Alsoar·throp·o·dal[]ar·throp·o·dan[]ar·throp·o·dous[]belonging or pertaining to the Arthropoda."]}]