insidious

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insidious

 [in-sid´e-us]
coming on stealthily; of gradual and subtle development.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

in·sid·i·ous

(in-sid'ē-ŭs),
Treacherous; stealthy; denoting a disease that progresses gradually with inapparent symptoms.
[L. insidiosus, cunning, fr. insidiae (pl.), an ambush]
Farlex Partner Medical Dictionary © Farlex 2012

in·sid·i·ous

(in-sid'ē-ŭs)
Treacherous; stealthy; denoting a disease that progresses gradually with inapparent symptoms.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

insidious

Of disease, occurring or progressing in an imperceptible manner so as to reach a harmful stage before being suspected.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Insidious

Developing in a stealthy or gradual manner. Sydenham's chorea may have an insidious onset.
Mentioned in: Sydenham's Chorea
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

in·sid·i·ous

(in-sid'ē-ŭs)
Treacherous; stealthy; denoting a disease that progresses gradually with inapparent symptoms.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
can occur with sudden overt clinical symptoms or present insidiously. Here we report a case of silent acute ST-elevation myocardial infarction associated with amphetamine use in a 62-year-old diabetic man.
Even so, it's two other things which made this one of the most insidiously uncomfortable programmes I've ever seen.
The text consists of 14 parts, which alternate running within the limits of the city and walking out from it to, along, beyond and off limits, discovering how insidiously mobile those limits are under Occupation.
What you do begins subtly, even insidiously, to define who you are.
HOSPITAL bosses insist they are not "insidiously" reducing services at St Cross in Rugby after closing a ward to save more than pounds 1million per year.
Indeed, Radin's third album is just what the doctor ordered: a set in which his warm vocal caresses subtle songs which insidiously sneak their way into your life.
(2) Such lesions grow insidiously. In asymptomatic patients, these pearls may be detected 1 to 2 years postoperatively during routine follow-up.
Whether the reluctance in the first place was justified is doubtful: the world's nuclear history has not been error and accident free, but the number of casualties resulting from mineral extraction and, more insidiously, from fossil-fuel combustion far outweighs the scale of any problems from nuclear development.
The difference comes when that adult world is foisted insidiously upon them.
Problems like racism, intolerance, discrimination, extremism are insidiously trying to diffuse into societies like deadly diseases," said Erdogan.