Noun
arthropod -
invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
invertebrate any animal lacking a backbone or notochord; the term is not used as a scientific classification
arthropoda ,
phylum arthropoda jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes
trilobite an extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts
arachnid ,
arachnoid air-breathing arthropods characterized by simple eyes and four pairs of legs
myriapod general term for any terrestrial arthropod having an elongated body composed of many similar segments: e.g. centipedes and millipedes
garden centipede ,
garden symphilid ,
scutigerella immaculata ,
symphilid minute arthropod often infesting the underground parts of truck-garden and greenhouse crops
tardigrade an arthropod of the division Tardigrada
centipede
millepede ,
milliped
millipede
pycnogonid ,
sea spider any of various small spiderlike marine arthropods having small thin bodies and long slender legs
class merostomata ,
merostomata used in some classifications; includes the orders Xiphosura and Eurypterida
horseshoe crab ,
limulus polyphemus ,
xiphosurus polyphemus ,
king crab large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse
asian horseshoe crab horseshoe crab of the coast of eastern Asia
eurypterid large extinct scorpion-like arthropod considered related to horseshoe crabs
pentastomid ,
tongue worm wormlike arthropod having two pairs of hooks at the sides of the mouth; parasitic in nasal sinuses of mammals
sclerite hard plate or element of the exoskeleton of some arthropods
carapace ,
cuticle ,
shield ,
shell hard outer covering or case of certain organisms such as arthropods and turtles
apodeme ridge-like ingrowth of the exoskeleton of an arthropod that supports internal organs and provides attachment points for muscles
crustacean any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
onychophoran ,
peripatus ,
velvet worm any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms
insect small air-breathing arthropod
instar an insect or other arthropod between molts
arthromere any of the segments in the body of a jointed animal like an arthropod
