Definition of noxious
Examples of noxious in a Sentence
mixing bleach and ammonia can cause noxious fumes that can seriously harm you
noxious smog that for years has been encrusting the historic cathedral with soot
Recent Examples of noxious from the Web
Meanwhile, the South Sea sponges continue to fabricate the noxious compounds.
Its limited effect on life span — an extension of a few months — suggests that excess glutamate is hardly the only noxious factor involved in the disease.
After an 8-year battle, Pfeifer died of terminal cancer, caused by the noxious cloud that hung over the disaster site.
There's no oxygen to speak of, and the gasses that are present are noxious to humans.
Residents downwind of the Rio Rancho fab are complaining that noxious vapors have caused chronic headaches, skin rashes, sleeping disorders, and even one death from lung fibrosis.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'noxious'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of noxious
Middle English noxius, from Latin, from noxa harm; akin to Latin nocēre to harm, nec-, nex violent death, Greek nekros dead body
First Known Use: 15th centurySee Words from the same year
Synonym Discussion of noxious
NOXIOUS Defined for English Language Learners
Definition of noxious for English Language Learners
: harmful to living things
NOXIOUS Defined for Kids
Definition of noxious for Students
: causing harm noxious fumes
Medical Definition of noxious
: physically harmful or destructive to living beings noxious wastes
Seen and Heard
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