/ahr"threuh pod'/ , n.
1. 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.
adj.
2. Also, arthropodal /ahr throp"euh dl/ , arthropodan /ahr throp"euh dn/ , arthropodous /ahr throp"euh deuhs/ . belonging or pertaining to the Arthropoda.
[ 1875-80; Arthropoda; see ARTHRO-, -POD ]