Dictionary
mi•as•ma
Pronunciation: (mī-az'mu, mē-), [key]—
n.,
—pl. -mas, -ma•taPronunciation: (-mu-tu). [key]
1. noxious exhalations from putrescent organic matter; poisonous effluvia or germs polluting the atmosphere.
2. a dangerous, foreboding, or deathlike influence or atmosphere.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.