Mammoth Uncensored Word List:
285 words ending with is, 8 letters long

acidosis acouchis adenitis adenosis adiposis afghanis agenesis akinesis alfaquis alizaris alphosis ameiosis amitosis anabasis analysis anemosis angiitis anthesis anuresis aortitis apneusis apoapsis apodosis apomixis assagais assegais astatkis bandaris banoffis basenjis basmatis bavarois bazoukis berberis bhishtis bilimbis biolysis birianis biryanis botrytis bouillis brewskis brocolis bursitis busuutis caecitis camoodis cannabis cannolis cantoris carditis cathexis centesis chapatis charpais charquis chemosis chiantis chiliois chorisis chupatis clematis clitoris colibris colpitis coniosis cosmesis creminis criminis cyanosis cyclosis cystitis dakoitis daquiris dashekis dashikis dementis dialysis didakais didakeis didicois diegesis dieresis diplosis dipsosis diskitis diuresis eccrisis eclipsis ecstasis effendis ellipsis emphasis emptysis empyesis enclisis endeixis enuresis epitasis epitaxis erotesis esthesis eucharis exegesis fascitis fetialis fibrosis flokatis fusillis geotaxis ghilgais gingelis gingilis gnocchis gouramis gracilis grisgris guaranis gummosis haliotis hallalis haloumis haplosis haramdis hautbois havartis heitikis heliosis helleris hexereis hibachis hidrosis hokonuis homeosis hormesis hypnosis imprimis jacuzzis jamdanis jampanis jinjilis jukskeis kabaddis kacheris kahawais kamichis karoshis kisanjis kokowais kolbasis kurtosis kyllosis kyphosis lampukis lecythis leukosis lordosis lyolysis macramis mammitis marconis martinis mastitis mathesis matsuris meltemis mephitis merantis methysis meticais metritis miniskis monoskis myelitis myositis myosotis narcosis narquois necrosis negronis neuritis neurosis nilghais notornis nylghais orchesis orchitis origamis orthosis osteitis osteosis ouakaris oustitis ovaritis pachisis pahlavis panmixis pardalis peccavis penuchis pheresis phimosis phthisis phylaxis phylesis physalis phytosis pignolis pindaris polypsis porcinis powhiris prepubis propolis protasis psilosis ptilosis pycnosis pyelitis pyknosis qawwalis quillais rabbonis rachitis rangolis raurikis raviolis rectitis remblais reversis rhinitis saimiris samadhis samithis samnitis samurais sanyasis saouaris sarangis sashimis semiosis serkalis shikaris shivitis sinuitis siriasis sondelis sparaxis spumonis stenosis subcutis suffaris sundaris synapsis syndesis synopsis syntaxis syntexis syphilis taboolis taboulis tankinis teniasis thelitis thlipsis thylosis tofuttis tortonis tripolis tsunamis turfskis turquois tyrannis uteritis uvulitis venturis virelais vulvitis wistitis wooralis wooraris wouralis xeransis zoonosis zymolyis