D defs.my
Entry 1 sense Webster, 1913

Miasma

/mī-ăz'mə/ · Mi·as·ma · IPA /maɪˈæzmə/
01 n. Infectious particles or germs floating in the air; air made noxious by the presence of such particles or germs; noxious effluvia; malaria.
pl. Miasmata ((#))
  1. 1.
    Infectious particles or germs floating in the air; air made noxious by the presence of such particles or germs; noxious effluvia; malaria.