deleterious


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del·e·te·ri·ous

 (dĕl′ĭ-tîr′ē-əs)
adj.
Having a harmful effect; injurious: the deleterious effects of smoking.

[From Greek dēlētērios, from dēlētēr, destroyer, from dēleisthai, to harm.]

del′e·te′ri·ous·ly adv.
del′e·te′ri·ous·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

deleterious

(ˌdɛlɪˈtɪərɪəs)
adj
harmful; injurious; hurtful
[C17: from New Latin dēlētērius, from Greek dēlētērios injurious, destructive, from dēleisthai to hurt]
ˌdeleˈteriously adv
ˌdeleˈteriousness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

del•e•te•ri•ous

(ˌdɛl ɪˈtɪər i əs)

adj.
1. injurious to health.
2. harmful; injurious.
[1635–45; < Greek dēlētḗrios destructive, adj. derivative of dēlētḗr destroyer =dēlē-, variant s. of dēleîsthai to hurt, injure + -tēr agent suffix; see -ous]
del`e•te′ri•ous•ly, adv.
del`e•te′ri•ous•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.deleterious - harmful to living things; "deleterious chemical additives"
harmful - causing or capable of causing harm; "too much sun is harmful to the skin"; "harmful effects of smoking"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

deleterious

adjective (Formal) harmful, bad, damaging, destructive, detrimental, hurtful, pernicious, ruinous, prejudicial, injurious Fear of crime is having a deleterious effect on society.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

deleterious

adjective
Causing harm or injury:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

deleterious

[ˌdelɪˈtɪərɪəs] ADJ (frm) → nocivo, perjudicial (to para)
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

deleterious

adj (form)schädlich (to für)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

deleterious

[ˌdelɪˈtɪərɪəs] adj (frm) deleterious (to)deleterio/a (per)
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

del·e·te·ri·ous

a. deletéreo-a, nocivo-a, dañino-a.
English-Spanish Medical Dictionary © Farlex 2012
References in classic literature ?
Or might it suffice him that every wholesome growth should be converted into something deleterious and malignant at his touch?
The Captain continued that deleterious amusement of smoking, long after the inn and the street were gone to bed.
if we had only the chemical means to drive away this deleterious gas.
During the last twelve hours the atmosphere of the projectile had become charged with this deleterious gas.
I experienced a painful commiseration for her unhappy husband (though fully aware that he had brought every particle of his sufferings upon himself, and but too well deserved them all), and a profound sympathy for her own afflictions, and deep anxiety for the consequences of those harassing cares, those dreadful vigils, that incessant and deleterious confinement beside a living corpse - for I was persuaded she had not hinted half the sufferings she had had to endure.
If this had happened in the days when he ranged the Great White Way, sucking up deleterious moisture like a cloud, it would have been intelligible.
Mysterious as this circumstance appears to be, it is not more surprising than that the body of one's fellow-creature, directly after death, and before putrefaction has commenced, should often be of so deleterious a quality, that the mere puncture from an instrument used in its dissection, should prove fatal.
These he cultivates with his own hands, and is said even to have produced new varieties of poison, more horribly deleterious than Nature, without the assistance of this learned person, would ever have plagued the world withal.
Summary: New Delhi [India], Aug 8 (ANI): The Indian Medical Association (IMA) has deferred its call for the withdrawal of services to a "later date of choice," and decided an aggressive public campaign against the deleterious clauses of the National Medical Commission (NMC) Bill.
I appeal the incumbent Government to pass act against dowry to end up the deleterious violence against women.
Oral habits can be classified as normal or deleterious. Nasal breathing, chewing and swallowing are regarded as physiological and functional habits, since they contribute to the establishment of a normal occlusion, favoring the harmonic facial growth without deviations (1).

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