Noxious Definition

Harmful to the health; injurious.
A noxious gas.
Webster's New World
Morally injurious; corrupting; unwholesome.
Webster's New World

Origin of Noxious

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

    From Wiktionary

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

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

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