Definition
The nematodes, roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (helminths) are the cause of soil-transmitted helminthiases.
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AbditibacteriotaAcanthocephalaAcetithermotaAcidobacteriotaAcorn wormActinomycetotaAdenophoreaAenigmatarchaeotaAerophobotaAgeingAlgaeAltarchaeotaAmbulacrariaAmerican Phytopathological SocietyAmerican eelAmmoniaAmoeboidAmoebozoaAmorpheaAmphidAmphistomiasisAnaeramoebaAncient GreekAncient Greek languageAncylostoma brazilienseAncylostoma duodenaleAncylostomiasisAndrodioeciousAndrodioecyAngiostrongyliasisAngiostrongylus cantonensisAnimalAnimal Diversity WebAnimaliaAnisakiasisAnisakidaeAnisakisAnnelidAnthelminticAnthozoaAnusAphasmidiaAphelenchoidesApicomplexaAquificotaArabis mosaic virusArchaeaArmatimonadotaArthropodAscariasisAscaridAscarididaAscaridinaAscaridoideaAscarisAscaris lumbricoidesAschelminthAscomycotaAsgard archaeaAsterozoaAtribacterotaAugarchaeotaAuribacterotaAustralasian Plant PathologyAustralian Faunal DirectoryBabelotaBacillotaBacteriaBacteroidotaBalneolalesBarcode of Life Data SystemBasal (evolution)BasidiomycotaBathyodontiaBaylisascarisBdelloideaBenthozoaBigyraBigyromonadBilateriaBinatotaBiological pest controlBipolaricaulotaBivalviaBlastocladiomycotaBrachiopodBrachiopodaBrachiozoaBrainBrassica junceaBristleBrugia malayiBrugia timoriBryozoaBurmese amberBursaphelenchus xylophilusCSIROCaelestesCaenorhabditis briggsaeCaenorhabditis elegansCalcareous spongeCaldipriscotaCaldisericotaCaldithrixCalescibacteriotaCamallanidaCambrianCanglongiotaCapillaria hepaticaCapillaria philippinensisCarboniferousCarl LinnaeusCarnivorous fungusCatalogue of LifeCentroneuraliaCephalochordateCephalopodCephalotes atratusCercozoaCestodaCestoideaChaetognathaCharophytaChelicerataChemoreceptorChinese mustardChitinChitonChitosanChlamydiotaChloroflexotaChlorophytaChordateChromadoreaChromadoriaChromosomal crossoverChrompodellidChrysiogenotaChytridiomycotaCiliaCiliateCircumesophageal nerve ringCladeClitellataCloacaCloacimonadotaCloningClonorchiasisClonorchis sinensisCnidariaCollagenConiferConserved signature indelsCoproliteCoprothermobacterotaCopulation (zoology)CosmopoliotaCretaceousCrinozoaCryosericotaCryptistaCtenophoraCutaneous larva migransCuticleCutwormCyanobacteriaCycadCycliophoraCycloneuraliaCyclophyllideaCystCysticercosisDNA barcodingDNA repairDeferribacterotaDeferrimicrobiotaDeinococcotaDemospongeDeuterostomeDevonianDiaphoretickesDicrocoeliasisDicrocoelium dendriticumDicrocoelium hospesDictyoglomusDicyemidaDigestionDigestive enzymeDinoflagellateDioctophyme renaleDioctophymosisDioeciousDiphyllobothriasisDiphyllobothriumDiphyllobothrium mansonoidesDiplogasteriaDirofilaria immitisDirofilaria repensDirofilariasisDisability-adjusted life yearDitylenchusDomain (biology)DormiibacterotaDorsal nerve cordDorylaimiaDorylaimidaDracunculiasisDracunculus (nematode)Dracunculus medinensisDubious speciesEPPO CodeEarly DevonianEcdysozoaEchinococcosisEchinococcus granulosusEchinococcus multilocularisEchinodermEchinostomaEchinostomiasisEchinozoaEcosystemEffluvivivacotaElectron micrographElectryoneotaElulimicrobiotaElusimicrobiotaEmbryonatedEmbryophyteEncyclopedia of LifeEndomyxaEndotokia matricidaEnopleaEnopliaEnterobiasisEnterobius vermicularisEntomopathogenic nematodeEntoproctaEntozoaEophasmaEpidermis (zoology)Eradication of dracunculiasisEuglenozoaEukaryoteEukaryotic cellEumetazoaExcretionExtraterrestrial lifeFamily (biology)Fasciola giganticaFasciola hepaticaFasciolopsiasisFasciolopsisFasciolopsis buskiFasciolosisFauna EuropaeaFecalFecesFermentibacterotaFervidibacterotaFibrobacterotaFicusFidelibacterFig waspFilariaFilariasisFilarioideaFlatwormFoliar nematodeFornicataFossilFrantišek VejdovskyFrugivorousFungiFungusFungus gnatFusobacteriotaG-actinGaster (insect anatomy)GastricGastrodiscoides hominisGastropodaGastrotrichGastrotrichaGemmatimonadotaGeneraGenusGeoarchaeotaGermlineGinkgophytaGlaucophyteGliocladium roseumGlobal Biodiversity Information FacilityGloboderaGlobodera rostochiensisGlomeromycotaGnathifera (Spiralia)Gnathostoma hispidumGnathostoma spinigerumGnathostomiasisGnathostomulidGnathostomulidaGnetophytaGoldiibacteriotaGonadGongylonemaGordiidaeGrapevine fanleaf virusGreen sulfur bacteriaGymnolaemataHadarchaeotaHadesarchaeotaHaemonchus contortusHalicephalobus gingivalisHaptophyteHeilongiotaHelicoverpa zeaHeligmosomoides bakeriHelminthiasisHemichordateHemimastigophoraHermann BurmeisterHermaphroditeHeteroderaHeteroloboseaHeterophyes heterophyesHeterophyiasisHeterorhabditisHeterorhabditis bacteriophoraHexactinellidHinthialibacterotaHookwormHookworm diseaseHookworm infectionHornwortHorticultureHox geneHuberarchaeotaHuman parasiteHydrogenedentotaHydrothermarchaeotaHydrothermotaHymenolepiasisHymenolepis diminutaHymenolepis nanaHyphochytriomycetesINaturalistIainarchaeotaIncertae sedisInstitute of Food and Agricultural SciencesIntegrated Taxonomic Information SystemInterim Register of Marine and Nonmarine GeneraIntestinal capillariasisIntestineJournal of Developmental BiologyJournal of South American Earth SciencesJurassicKapaibacteriotaKarl Moriz DiesingKarl RudolphiKarl Theodor Ernst von SieboldKinorhynchaKiritimatiellotaKrumholzibacteriotaKryptoniotaKryptotrochozoaLagerstätteLarvaLasioglossum zephyrusLatescibacterotaLatin languageLentisphaerotaLernaellotaLifeLimnognathiaList of longest-living organismsList of nematode familiesList of organic gardening and farming topicsList of parasites of humansLithacetigenotaLithosphereLiver flukeLiverwortLoa loaLoa loa filariasisLongidorusLophophorataLophotrochozoaLoriciferaLycophyteLymphatic filariasisMacinerneyibacteriotaMaizeMalawimonadaMansonellaMansonelliasisMargulisiibacteriotaMarine mammalMedusozoaMeiobenthosMeiosisMeloidogyneMermithidaMesorhabditisMesozoaMetagonimiasisMetagonimus yokogawaiMetastrongylosisMetastrongylusMethanobacteriotaMethylomirabilotaMicrarchaeotaMicrocaldusMicrognathozoaMicroorganismMinisyncoccotaMitosisModel organismModuliflexotaMolecular phylogeneticsMolluscaMoltrasio FormationMonhysteridaMonochamusMonogeneaMonogonontaMossMoultingMuiribacteriotaMuscleMuscle armsMycoplasmatotaMyriapodaMyrmeconema neotropicumMyxozoaNacobbusNanobdellotaNanohalarchaeotaNathan CobbNational Biodiversity NetworkNational Center for Biotechnology InformationNatural environmentNebulidiaNecator americanusNecatoriasisNematode.netNematode infectionNematoidaNematoideaNematomorphaNematophagous fungusNemerteaNeo-LatinNeocallimastigomycotaNeogeneNeontologyNephrozoaNezhaarchaeotaNibbleridiaNippostrongylus brasiliensisNitrogen cycleNitrogenous wasteNitrosediminicolotaNitrospinotaNitrospirotaNucleic acid sequenceOceanic trenchOceanisOchrophyteOcular larva migransOesophagostomiasisOesophagostomumOld World monkeyOligoceneOmnitrophotaOnchocerca volvulusOnchocerciasisOncholaimiaOncideres cingulataOnychophoraOomyceteOpen Tree of LifeOpen accessOpisthorchiasisOpisthorchis felineusOpisthorchis viverriniOrdovicianOrthonectidaOsmoregulationOvaryOviductOvoviviparousOxyuridaeOxyuridomorphaPaleobiology DatabasePaleogenePaleolakePanagrolaimusPanagrolaimus kolymaensisPanarthropodaPancrustaceaPapainParaHoxozoaParabasalidParagonimiasisParagonimus kellicottiParagonimus westermaniParakaryonParaphyleticParascaris equorumParasitic diseaseParasitic wormsParasitismParcunitrobacterotaParthenogenesisParvarchaeotaPathogenPeregrinibacteriotaPerkinseaPermianPesticidesPharynxPhasmarhabditis hermaphroditaPhasmid (nematode)PhoronidPhylactolaemataPhylogenetic treePhylogenyPhylumPicozoaPigmentPinworm (parasite)PlacozoaPlanctomycetotaPlant Disease (journal)Plant virusPlanulozoaPlatytrochozoaPlectiaPlesiomorphPolychaetePoseidoniotaPotatoPratylenchusPreaxostylaPrecambrianPriapulidaPristionchus pacificusProtistProtostomePseudomonadotaPseudophyllideaPteridophytePterobranchiaQinglongiotaRarefaction (ecology)Ray LankesterRectumRed algaeRetariaRhabditiaRhabditidaRhabditinaRhodelphisRhodothermotaRhynie chertRifleibacteriotaRoot-knot nematodesRotiferRotiferaRouphozoaRyujiniotaSTS-107SalinellaScalidophoraSchistosomaSchistosoma haematobiumSchistosoma intercalatumSchistosoma japonicumSchistosoma mansoniSchistosoma mekongiSchistosomiasisSeabedSecernenteaSeisonidaeSeminal vesicleSexual reproductionSilurianSipunculaSister taxonSlugSnailSoil-transmitted helminthiasisSoil ecologySoil food webSoil steam sterilizationSoybeanSoybean cyst nematodeSpace Shuttle ColumbiaSpace Shuttle Columbia disasterSparganosisSpeciesSpecies complexSpermSpermathecaSphincterSpicule (nematode)Spiracle (arthropods)SpiraliaSpirochaeteSpirometra erinaceieuropaeiSpiruriaSpiruridaSpiruridaeSpirurinaSpiruroideaSpiruromorphaSpongeSpongiamicotaSteinernemaSteinernema carpocapsaeSteinernema riobraveStenolaemataStomachStrongylidaStrongyloides stercoralisStrongyloidiasisStylet (zoology)Sugar beetSumerlaeotaSuperphylumSwimmer's itchSymbionSyncytiumSynergistotaSynonym (taxonomy)SysuimicrobiotaSão Paulo (state)Taenia asiaticaTaenia saginataTaenia soliumTaeniasisTagetesTangaroaeotaTapeworm infectionTardigradeTaxonTaxonomy (biology)TectimicrobiotaTelonemiaTetradonematidaeThelaziaThelaziasisThelazioideaThermodesulfobacteriotaThermomicrobiotaThermoproteotaThermotogaeTianyaibacteriotaTomatoToxocara canisToxocara catiToxocariasisTree of Life Web ProjectTrematodaTriassicTrichinella spiralisTrichinellidaTrichinosisTrichobilharzia regentiTrichocephaliaTrichodorusTrichostrongyliasisTrichostrongylusTrichuriasisTrichuris trichiuraTriplonchiaTunicateTurbellariaTusk shellTylenchiaTylenchinaUndinarchaeotaUniversity of FloridaUterusVas deferensVector (epidemiology)Ventral nerve cordVermesVerrucomicrobiotaVertebrateVine weevilVisceral larva migransVulcanimicrobiotaWebwormWeevilWestern flower thripsWhipwormWikidataWikispeciesWirthibacterotaWoodboring beetleWorld Register of Marine SpeciesWorm baggingWuchereria bancroftiXenacoelomorphaXenambulacrariaXiphinemaXiphinema diversicaudatumXiphinema indexZhuqueibacterotaZhurongbacterotaZoonoticZootaxaZygomycota
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