adjective Etymology: Middle English noxius, from Latin, from noxa harm; akin to Latin nocēre to harm, nec-, nex violent death, Greek nekros dead body Date: 15th century 1. a. physically harmful or destructive to living beings <
noxious waste
b. constituting a harmful influence on mind or behavior; especially morally corrupting <
noxious doctrines
2. disagreeable, obnoxious Synonyms: see perniciousnoxiously adverbnoxiousness noun

New Collegiate Dictionary. 2001.


Look at other dictionaries:

  • Noxious — Nox ious, a. [L. noxius, fr. noxa harm; akin to nocere to harm, hurt. Cf. {Nuisance}, {Necromancy}.] [1913 Webster] 1. Hurtful; harmful; baneful; pernicious; injurious; destructive; unwholesome; insalubrious; as, noxious air, food, or climate;… …   The Collaborative International Dictionary of English

  • Noxious — may refer to: Poison, substances that can can harm or kill . Noxious weed, a plant designated by the government as injurious to public health, agriculture, recreation, wildlife or property Noxious stimulus, an actually or potentially tissue… …   Wikipedia

  • noxious — I adjective adverse, bad, baleful, baneful, brutal, causing danger, contaminated, corrupting, damaging, dangerous, deleterious, destructive, detrimental, disadvantageous, fatal, fraught with danger, harmful, hazardous, hurtful, impairing,… …   Law dictionary

  • noxious — [näk′shəs] adj. [L noxius < noxa, injury, hurt < nocere, to hurt, injure: see NECRO ] 1. harmful to the health; injurious [a noxious gas] 2. morally injurious; corrupting; unwholesome SYN. PERNICIOUS noxiously adv. noxiousness n …   English World dictionary

  • noxious — (adj.) c.1500, from L. 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 (Cf. necro )) …   Etymology dictionary

  • noxious — baneful, *pernicious, deleterious, detrimental Analogous words: injurious, hurtful, harmful (see corresponding nouns at INJURY): *poisonous, virulent, venomous, toxic, pestilent, miasmatic: noisome, stinking, fetid, putrid (see MALODOROUS)… …   New Dictionary of Synonyms

  • noxious — [adj] deadly, injurious baneful, corrupting, dangerous, deleterious, destructive, detrimental, fetid, foul, harmful, hurtful, insalubrious, insalutary, noisome, pernicious, pestiferous, pestilent, pestilential, poisonous, putrid, sickly, spoiled …   New thesaurus

  • noxious — ► ADJECTIVE ▪ harmful, poisonous, or very unpleasant. ORIGIN from Latin noxa harm …   English terms dictionary

  • noxious — [[t]nɒ̱kʃəs[/t]] 1) ADJ GRADED: usu ADJ n A noxious gas or substance is poisonous or very harmful. Many household products give off noxious fumes. ...carbon monoxide and other noxious gases. 2) ADJ GRADED: usu ADJ n If you refer to someone or… …   English dictionary

  • noxious — noxiously, adv. noxiousness, n. /nok sheuhs/, adj. 1. harmful or injurious to health or physical well being: noxious fumes. 2. morally harmful; corrupting; pernicious: a noxious plan to spread dissension. [1605 15; < L noxius harmful, hurtful,… …   Universalium

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