MIASMA Meaning of MIASMA in English n. (pl. miasmata or miasmas) archaic an infectious or noxious vapour. miasmal adj. miasmatic adj. miasmic adj. miasmically adv.[ Gk, = defilement, f. miaino pollute ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012