Here's what rhymes with hyperpyrexia.
anorexia dyslexia bulimarexia Words that almost rhyme with hyperpyrexia
malaria millennia aquaria honoraria vivaria biennia dementia ischemia leukaemia hyperkalemia toxemia camellia compendia poinsettia proscenia hysteria hypokalemia hyponatremia hypoxemia thalassemia tularemia planetaria quadrennia intelligentsia sanitaria