11 letter words ending in is in the mammoth uncensored word list.

abiogenesis adenoiditis adenomyosis adrenolysis aerokinesis agranulosis agrokinesis alcoholysis allokinesis ammonolysis amphigouris amyloidosis anadiplosis anaesthesis anagnorisis anaphoresis anaphylaxis anaplerosis anastomosis anthracosis antiphrasis antipyresis aponeurosis apophysitis aposiopesis arabidopsis archaeornis arthrodesis ascaridosis atelectasis autogenesis autokinesis avoirdupois bacteriosis barramundis barytonesis berylliosis biocoenosis blepharitis borreliosis bromidrosis brucellosis burramundis candidiasis caryopteris catachresis catagenesis cellentanis cenesthesis cenogenesis certioraris chemosmosis cholangitis cholecystis cholestasis choroiditis coatimundis coccidiosis colpoptosis cyanidrosis cytogenesis cytokinesis demidicosis desmectasis devanagaris diaphoresis diapophysis diarthrosis ecblastesis ectogenesis emphyteusis enarthrosis endocytosis endomitosis enzymolysis epanalepsis epiphysitis eremacausis esophagitis etymothesis exenteritis exometritis fasciodesis fasciolasis fasciolosis frangipanis frontolysis gamogenesis gliomatosis globidiosis gnotobiosis gynogenesis haemoptysis haemostasis hematemesis hematolysis hematuresis hemiparesis hemopoiesis heterolysis heterotaxis homeostasis homogenesis homozygosis hylogenesis hyperacusis hyperemesis hyperinosis hypogenesis hypoglottis hypokinesis hypotyposis ichthyornis iconostasis ileocolitis ischidrosis ischiopubis jaguarondis jaguarundis katagenesis kenogenesis keratonyxis ketogenesis kinesthesis kowhaiwhais lipogenesis lipomatosis listeriosis lumbricalis lymphotaxis makunouchis mastoiditis megalopolis melioidosis merogenesis metachrosis metagenesis metanalysis metaphrasis millefioris mingimingis misanalysis misemphasis mitogenesis monoblepsis monocytosis monogenesis mutagenesis myocarditis mythopoesis myxomatosis myzocytosis natriuresis nearthrosis necrobiosis necropoleis neosporosis nephrolepis nocardiosis nondialysis nosematosis oncogenesis ontogenesis onycholysis orbicularis orthopraxis osteoclasis pakirikiris parablepsis paragenesis paraleipsis paraparesis paraphraxis parasitosis parenthesis parotiditis pediculosis pedogenesis perigenesis periostitis periphrasis peristalsis peritonitis phalacrosis pharyngitis phthiriasis phyllotaxis piccalillis pinocytosis plasmolysis pleurodesis pneumonitis polygenesis predialysis presbycusis presynapsis prophylaxis prostatitis proteolysis psittacosis pyarthrosis pyrokinesis raiyatwaris resynthesis rhizodermis salmagundis salpingitis sarcocystis sarcoidosis satyagrahis scallopinis sclerotitis shakuhachis sharawadgis sharawaggis shigellosis somesthesis spermacetis spirillosis splenopexis spondylitis spondylosis staphylitis steatolysis stephanotis stereotaxis stylostixis synanthesis synchoresis syndesmosis synoeciosis synosteosis syssarcosis taboparesis tagliarinis technopolis telekinesis tetrazzinis thanatopsis therapeusis thermolysis thermotaxis thigmotaxis thyroiditis tonsillitis tortellinis torticollis trichinosis trophotaxis ureagenesis utriculitis vermicellis vesiculitis xenogenesis xerotripsis yersiniosis zygogenesis zygomycosis zymogenesis