Definition of noxious
1a : physically harmful or destructive to living beings noxious waste noxious fumesb : constituting a harmful influence on mind or behavior; especially : morally corrupting noxious doctrines
2 : disagreeable, obnoxious this noxious political scandal — H. L. Ickes
noxiously
adverbnoxiousness
nounPeople Are Reading
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
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 century
Synonym Discussion of noxious
Other Ecology Terms
NOXIOUS Defined for English Language Learners
noxious
playDefinition of noxious for English Language Learners
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: harmful to living things
NOXIOUS Defined for Kids
noxious
playDefinition of noxious for Students
: causing harm noxious fumes
Medical Dictionary
noxious
playMedical Definition of noxious
: physically harmful or destructive to living beings noxious wastes
Learn More about noxious
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Thesaurus: All synonyms and antonyms for noxious Spanish Central: Translation of noxious Nglish: Translation of noxious for Spanish speakers Britannica English: Translation of noxious for Arabic speakers
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