Definition of miasmatist in English:

miasmatist

Pronunciation /mɪˈazmətɪst/ /mʌɪˈazmətɪst/

noun

rare
  • A person who studies or investigates miasmas, especially one who believes in the causation of disease by miasmas.

Origin

Mid 19th century. From ancient Greek μιασματ-, μίασμα miasma + -ist.