单词 | arthropod |
释义 | arthropod (once / 43938 pages) n An arthropod is an animal with no internal spine, a body made of joined segments, and a hard covering, like a shell. Spiders are one type of arthropod. Many different kinds of animals fall into the category known as arthropods, most of them insects or spiders, but also including crustaceans like shrimp, crabs, and lobsters. Their bodies are jointed and they have an exoskeleton, their hard outer covering. The Modern Latin root is Arthropoda, which is also the name of the animals' phylum, and which means "those with jointed feet." WORD FAMILYarthropod: arthropodal, arthropods USAGE EXAMPLESTesting these theories meant gathering various species of arthropods over many years. Washington Times(Nov 09, 2016) For this study, she focused on the arthropods. Washington Post(Nov 02, 2016) Sunday, live bug shows to touch, hold and pet arthropods, 10:30 a.m., Seattle Times(Sep 15, 2016) n invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin Hypo|Hyper trilobite an extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts arachnid, arachnoidair-breathing arthropods characterized by simple eyes and four pairs of legs myriapodgeneral term for any terrestrial arthropod having an elongated body composed of many similar segments: e.g. centipedes and millipedes Scutigerella immaculata, garden centipede, garden symphilid, symphilidminute arthropod often infesting the underground parts of truck-garden and greenhouse crops tardigradean arthropod of the division Tardigrada centipedechiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs, the foremost pair being modified as prehensors millepede, milliped, millipedeany of numerous herbivorous nonpoisonous arthropods having a cylindrical body of 20 to 100 or more segments most with two pairs of legs pycnogonid, sea spiderany of various small spiderlike marine arthropods having small thin bodies and long slender legs Merostomata, class Merostomataused in some classifications; includes the orders Xiphosura and Eurypterida Limulus polyphemus, Xiphosurus polyphemus, horseshoe crab, king crablarge 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 crabhorseshoe crab of the coast of eastern Asia eurypteridlarge extinct scorpion-like arthropod considered related to horseshoe crabs pentastomid, tongue wormwormlike arthropod having two pairs of hooks at the sides of the mouth; parasitic in nasal sinuses of mammals crustaceanany mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton onychophoran, peripatus, velvet wormany of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms insectsmall air-breathing arthropod instaran insect or other arthropod between molts Phalangium opilio, daddy longlegs, harvestmanspiderlike arachnid with a small rounded body and very long thin legs scorpionarachnid of warm dry regions having a long segmented tail ending in a venomous stinger false scorpion, pseudoscorpionsmall nonvenomous arachnid resembling a tailless scorpion whip scorpion, whip-scorpionnonvenomous arachnid that resembles a scorpion and that has a long thin tail without a stinger spiderpredatory arachnid with eight legs, two poison fangs, two feelers, and usually two silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey acarinemite or tick Scutigera coleoptrata, house centipedelong-legged centipede common in damp places as e.g. cellars malacostracan crustaceana major subclass of crustaceans decapod, decapod crustaceancrustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax brachyurantypical crabs stomatopod, stomatopod crustaceana kind of crustacean branchiopod, branchiopod crustacean, branchiopodanaquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding copepod, copepod crustaceanminute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish mussel shrimp, ostracod, seed shrimptiny marine and freshwater crustaceans with a shrimp-like body enclosed in a bivalve shell barnacle, cirriped, cirripedemarine crustaceans with feathery food-catching appendages; free-swimming as larvae; as adults form a hard shell and live attached to submerged surfaces Plicatoperipatus jamaicensisa kind of onychophoran social insectan insect that lives in a colony with other insects of the same species ephemeral, ephemeronanything short-lived, as an insect that lives only for a day in its winged form holometabola, metabolainsects that undergo complete metamorphosis defoliatoran insect that strips the leaves from plants pollinatoran insect that carries pollen from one flower to another gallflyany of various insects that deposit their eggs in plants causing galls in which the larvae feed mecopteranany of various carnivorous insects of the order Mecoptera collembolan, springtailany of numerous minute wingless primitive insects possessing a special abdominal appendage that allows the characteristic nearly perpetual springing pattern; found in soil rich in organic debris or on the surface of snow or water proturan, telsontailany of several minute primitive wingless and eyeless insects having a cone-shaped head; inhabit damp soil or decaying organic matter beetleinsect having biting mouthparts and front wings modified to form horny covers overlying the membranous rear wings web spinnerany of a small order of slender typically tropical insects that nest in colonies in silken tunnels that they spin louse, sucking lousewingless usually flattened bloodsucking insect parasitic on warm-blooded animals bird louse, biting louse, lousewingless insect with mouth parts adapted for biting; mostly parasitic on birds fleaany wingless bloodsucking parasitic insect noted for ability to leap dipteran, dipteron, dipterous insect, two-winged insectsinsects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing leaf miner, leaf-minerany of various small moths or dipterous flies whose larvae burrow into and feed on leaf tissue especially of the family Gracilariidae hymenopter, hymenopteran, hymenopteron, hymenopterous insectinsects having two pairs of membranous wings and an ovipositor specialized for stinging or piercing workersterile member of a colony of social insects that forages for food and cares for the larvae termite, white antwhitish soft-bodied ant-like social insect that feeds on wood orthopteran, orthopteron, orthopterous insectany of various insects having leathery forewings and membranous hind wings and chewing mouthparts phasmid, phasmid insectlarge cylindrical or flattened mostly tropical insects with long strong legs that feed on plants; walking sticks and leaf insects dictyopterous insectcockroaches and mantids buggeneral term for any insect or similar creeping or crawling invertebrate bug, hemipteran, hemipteron, hemipterous insectinsects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis heteropterous insecttrue bugs: insects whose forewings are membranous but have leathery tips homopteran, homopterous insectinsects having membranous forewings and hind wings psocopterous insectsmall soft-bodied insect with chewing mouthparts and either no wings or two pairs ephemerid, ephemeropteranshort-lived insect plecopteran, stone fly, stoneflyprimitive winged insect with a flattened body; used as bait by fishermen; aquatic gilled larvae are carnivorous and live beneath stones neuropteran, neuropteron, neuropterous insectinsect having biting mouthparts and four large membranous wings with netlike veins odonatelarge primitive predatory aquatic insect having two pairs of membranous wings trichopteran, trichopteron, trichopterous insectcaddis fly thysanuran insect, thysanuronprimitive wingless insects: bristletail thysanopter, thysanopteron, thysanopterous insectan insect of the order Thysanoptera earwigany of numerous insects of the order Dermaptera having elongate bodies and slender many-jointed antennae and a pair of large pincers at the rear of the abdomen lepidopteran, lepidopteron, lepidopterous insectinsect that in the adult state has four wings more or less covered with tiny scales pupaan insect in the inactive stage of development (when it is not feeding) intermediate between larva and adult imagoan adult insect produced after metamorphosis queenthe only fertile female in a colony of social insects such as bees and ants and termites; its function is to lay eggs invertebrate any animal lacking a backbone or notochord; the term is not used as a scientific classification |
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