Also found in: Medical, Legal.


Harmful; noxious.

[From Latin nocuus, from nocēre, to harm; see nek- in Indo-European roots.]

noc′u·ous·ly adv.


rare harmful; noxious
[C17: from Latin nocuus, from nocēre to hurt]
ˈnocuously adv
ˈnocuousness n


(ˈnɒk yu əs)

[1625–35; < Latin nocuus harmful, injurious]
noc′u•ous•ly, adv.
noc′u•ous•ness, n.


- Meaning "harmful, noxious," it is based on Latin nocere, "to hurt."
See also related terms for harmful.
Mentioned in ?
References in periodicals archive ?
In both plays, plague is a force that affects both tactile and olfactory senses; to connect a play to plague is to connect it to the rhetoric "of lost breaths, foul smells, and purged airs [that] channel contemporary fears of the nocuous effects of aggressive social conflict, developing within the deteriorating sanitary and social climate of a volatile and overcrowded city, not unlike Jacobean London" (161).
In it the philosopher refers to critical and widespread views on radicalism as the alleged source of all evil, absurd and nocuous ideas, and destructive machinations that the British public--gripped by fearsome images of the bloody revolution in France--was willing to attribute to the English radicals.
A syndrome produced by divers nocuous agents, Nature 138(3479): 32.
Music Sorrowseed, Forevers' Fallen Grace, Nocuous, Blacksoul Seraphim, Infested Prophecy.
Selye (1936, 1946), who pioneered research on the biological effects of stress stimuli, reported the uniform responses that are elicited in a mammal when its homeostasis is threatened by various types of nocuous stimuli, including enlargement of the adrenal gland and atrophy of the thymus.