Noxious meaning

nŏkshəs
The definition of noxious is something very unpleasant or something poisonous.

An example of a noxious gas is carbon monoxide.

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Harmful to living things; injurious to health.

Noxious chemical wastes.

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Harmful to the mind or morals; corrupting.

Noxious ideas.

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Harmful to the health; injurious.

A noxious gas.

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Morally injurious; corrupting; unwholesome.
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Origin of noxious

  • Middle English noxius from Latin from noxa damage nek-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From noxius (“hurtful, injurious"), from noxa (“hurt, injury"), from nocere (“to hurt, injure"); see nocent.

    From Wiktionary