Arthropoda \Ar*throp"o*da\, n. pl. [NL., fr. Gr. 'a`rqron joint + -poda.] (Zo["o]l.) A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea. -- {Ar*throp"o*dal}, a.
arthropodal adj : of or relating to invertebrates of the phylum Arthropoda [syn: {arthropodan}, {arthropodous}]