Here's what rhymes with rickettsiosis.
cirrhosis ptosis psychosis apotheosis meiosis fibrosis sclerosis acidosis hypnosis neurosis cyanosis mitosis scoliosis halitosis diagnosis prognosis necrosis thrombosis apoptosis arteriosus symbiosis amyloidosis aponeurosis leukocytosis sarcoidosis erythematosus phagocytosis misdiagnosis psychoneurosis hydronephrosis metempsychosis arteriosclerosis mononucleosis Words that almost rhyme with rickettsiosis
doses ferocious poses sofas novas noshes moshes atrocious precocious samosas cosmoses pavlovas imposes mimosas supernovas reimposes superimposes focus notice locus bonus hostess lotus slowness bogus bolus foetus modus polis loess poetess lowness bolas colas togas goalless poets hopeless homeless doughnuts poultice soulless boneless crocus refocus smokeless donuts kopeks toneless coronas hotness docents roebucks cloacas violists moments boldness coldness rodents locusts remoteness embolus nobleness proneness sarcomas cupolas grownups gladiolus holdups blowups foments snowbanks drollness pianolas opponents exponents dichotomous cacophonous deponents weaponless sobriquets proponents condolence quotients elopements enthronements honeylocusts components encroachments enrollments enrolments postponements chiropodists cosmogonists