Miasma meaning

mī-ăz'mə, mē-
The definition of miasma is steam rising from rotting vegetable or animal matter.

An example of miasma is vapor from a compost pile.

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A noxious atmosphere or influence.
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A vapor rising as from marshes or decomposing animal or vegetable matter: formerly supposed to poison and infect the air, causing malaria, etc.
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An unwholesome or befogging atmosphere, influence, etc.
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A noxious atmosphere or influence.
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A noxious atmosphere or emanation once thought to originate from swamps and waste to cause disease.
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Origin of miasma

  • Greek pollution, stain from miainein to pollute
    From American Heritage Dictionary of the English Language, 5th Edition
  • First attested in 1665. From Ancient Greek μίασμα (miasma) (miasma) "stain, pollution".
    From Wiktionary