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noxious

[nok-shuh s] /ˈnɒk ʃəs/
adjective
1.
harmful or injurious to health or physical well-being:
noxious fumes.
2.
morally harmful; corrupting; pernicious:
a noxious plan to spread dissension.
Origin
1605-1615
1605-15; < Latin noxius harmful, hurtful, injurious, equivalent to nox(a) harm, hurt, injury (akin to nocēre to do harm, inflict injury; see innocent) + -ius -ious
Related forms
noxiously, adverb
noxiousness, noun
Synonyms
1. hurtful, unwholesome, unhealthy, nocuous, detrimental, deleterious. 2. corruptive.
Antonyms
1, 2. harmless.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for noxious
  • These chemicals can make plants smell good or, alternately, noxious.
  • She got him to eat his peas, whenever the noxious legume appeared on his plate, by paying him $5.
  • The noxious gas was the result of the impact.
  • The invaders meet any foe aggressively, releasing noxious chemicals during battle.
  • The airtight chamber could insulate occupants from noxious fumes and supply 15 men with food, air and water for 96 hours.
  • Fingers crossed that I haven't caught whatever noxious mixture of germs was incubating in my car during the journey out.
  • She must avoid the noxious preening that taints so many memoirs of their authors' misspent youth.
  • It releases lots of soot and various noxious chemicals as it burns, and so has fallen out of favour in many Western countries.
  • Business and politics too often overlap, often in a noxious cocktail with local and foreign spooks and crooks.
  • They surround their crops with rows of chili peppers, whose smell is noxious to elephants.
British Dictionary definitions for noxious

noxious

/ˈnɒkʃəs/
adjective
1.
poisonous or harmful
2.
harmful to the mind or morals; corrupting
Derived Forms
noxiously, adverb
noxiousness, noun
Word Origin
C17: from Latin noxius harmful, from noxa injury
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for noxious
adj.

c.1500, from Latin noxius "hurtful, injurious," from noxa "injury, hurt, damage entailing liability" (related to nocere "to hurt," and to nex "slaughter"), from PIE *nek-ro-, causative form of root *nek- "death" (see necro-).

Online Etymology Dictionary, © 2010 Douglas Harper
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noxious in Medicine

noxious nox·ious (nŏk'shəs)
adj.
Harmful to living things; injurious to health.


nox'ious·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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