Definitions

1. noun

a member of the subphylum Chelicerata, or the subphylum Mandibulata, which includes spiders, scorpions, ticks, mites, insects, and crustaceans

“The arthropod family is incredibly diverse and consists of over a million described species.”

2. noun

a creature having a jointed exoskeleton and multiple limbs

“The arthropod was the first creature to evolve on land, paving the way for the development of complex life forms.”