instability


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.

instability

 [in-stah-bil´ĭ-te]
lack of constancy; excessive likelihood of change.
detrusor instability the occurrence during bladder filling of contractions that compromise capacity or produce urinary leakage.
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·sta·bil·i·ty

(in'stă-bil'i-tē),
The state of being unstable, or lacking stability.
Farlex Partner Medical Dictionary © Farlex 2012

instability

Lacking complete stability. See Hemodynamic instability Orthopedics The inability to maintain a reduced joint. See Functional instability, Mechanical instability, Multidirectional instability, Shoulder instability.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

in·sta·bil·i·ty

(in'stă-bil'i-tē)
1. The state of being unstable, or lacking stability.
2. The abnormal tendency of a joint to subluxate or dislocate with normal activities and stresses.
See also: laxity
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Velex, "Instability analysis in oscillators with velocity-modulated time-varying stiffness--applications to gears submitted to engine speed fluctuations," Journal of Sound and Vibration, vol.
According to the report, top US conflict prevention priorities in 2016 will include "the intensification of the civil war in Syria; a mass casualty attack on the US homeland or a treaty ally; a highly disruptive cyberattack on critical US infrastructure; a severe crisis with or in North Korea; political instability in EU countries stemming from the influx of refugees and migrants; continued political fracturing of Libya; heightened tensions between Israelis and Palestinians; intensified political violence in Turkey; increased political instability in Egypt; increased violence and instability in Afghanistan; and continued fracturing of Iraq due to territorial gains by the self-proclaimed Islamic State and ongoing Sunni-Shia sectarian violence."
This intelligent safety stock policy gives better results in terms of instability and cost compared to the automatic policy where orders are placed every time the projected inventory is below the target safety level (Sridharan, 2007; Kabak & Ornek, 2009).
It shows that the main source of work face support resistance is fracture instability of different roofs in the overlying strata and intensity of mine pressure manifestation with different coal seam thicknesses demonstrates different manners of distribution.
The researchers said that instability would keep pushing ice out to the ocean at an accelerated rate over the coming centuries.
'It is still unclear whether the West Antarctic ice sheet instability is triggered by human activity.
The R-T-like instability in granular materials arises from a competition between upward drag force increased locally by gas channeling and downward contact forces, a physical mechanism entirely different from that found in liquids.
Initial presentations of shoulder instability may involve either a reduced or an acutely dislocated joint.
Enumerating others factor that have caused or is still causing instability in the region, President Masood said Pakistan's fateful choices to become part of strategic alliances - in the 1950s against communism, in the 1980s against the Soviet presence in Afghanistan, and in the early 2000s in the war on terror - were a source of both security and insecurity.
'Precisely if they want to achieve stability, the stability is to follow the rule of succession; otherwise there will be instability because the Senate President can be replaced anytime,' he further stressed.
Yamada decided to investigate whether genomic instability has a role in causing or facilitating Alzheimer's disease.