Arthropoda

Ar`throp´o`da

n. pl.

1.

(Zool.) A large division of Articulata, embracing all those that have jointed legs. It includes Insects, Arachnida, Pychnogonida, and Crustacea.

Thesaurus

Noun

1.

Arthropoda - jointed-foot invertebrates: arachnids; crustaceans; insects; millipedes; centipedes phylum Arthropoda animal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animals arthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin Chelicerata, superclass Chelicerata - spiders; scorpions; horseshoe crabs superclass Myriapoda - used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes class Pauropoda, Pauropoda - an obscure class of minute arthropods with branched antennae and 8 to 10 pairs of legs class Symphyla, Symphyla - small class of minute arthropods; unimportant except for the garden centipede class Tardigrada, Tardigrada - in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx Chilopoda, class Chilopoda - arthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes class Diplopoda, class Myriapoda, Diplopoda, Myriapoda - arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes Pentastomida, subphylum Pentastomida - tongue worms class Crustacea, Crustacea - class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas class Onychophora, Onychophora - enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids class Hexapoda, class Insecta, Hexapoda, Insecta - insects; about five-sixths of all known animal species insect - small air-breathing arthropod phylum - (biology) the major taxonomic group of animals and plants; contains classes