— miasmal, miasmatic /muy'az mat"ik/ , miasmatical, miasmic , adj.
/muy az"meuh, mee-/ , n. , pl. miasmas, miasmata /-meuh teuh/ .
1. noxious exhalations from putrescent organic matter; poisonous effluvia or germs polluting the atmosphere.
2. a dangerous, foreboding, or deathlike influence or atmosphere.
[ 1655-65; míasma stain, pollution, akin to miaínein to pollute, stain ]