arthropod

1. N any invertebrate of the phylum Arthropoda, having jointed limbs, a segmented body, and an exoskeleton made of chitin. The group includes the crustaceans, insects, arachnids, and centipedes 節(jié)肢動(dòng)物; 節(jié)肢動(dòng)物門(mén)的無(wú)脊椎動(dòng)物，包括甲殼綱、崑蟲(chóng)綱、蛛形綱和蜈蚣亞綱等