unstable

(redirected from unstable fracture)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to unstable fracture: transverse fracture

un·sta·ble

 (ŭn-stā′bəl)
adj. un·sta·bler, un·sta·blest
1.
a. Tending strongly to change: unstable weather.
b. Not constant; fluctuating: unstable vital signs.
2.
a. Wavering or fickle: At first, he was unstable in his decisions.
b. Showing or marked by erratic or volatile emotions or behavior.
3. Not firmly placed; unsteady: an unstable ladder.
4. Chemistry
a. Decomposing readily.
b. Highly or violently reactive.
5. Physics
a. Decaying with relatively short lifetime. Used of subatomic particles.
b. Radioactive.

un·sta′ble·ness n.
un·sta′bly adv.

unstable

(ʌnˈsteɪbəl)
adj
1. lacking stability, fixity, or firmness
2. disposed to temperamental, emotional, or psychological variability
3. (Chemistry) (of a chemical compound) readily decomposing
4. (Atomic Physics) physics
a. (of an elementary particle) having a very short lifetime
b. spontaneously decomposing by nuclear decay; radioactive: an unstable nuclide.
5. (Electronics) electronics (of an electrical circuit, mechanical body, etc) having a tendency to self-oscillation
unˈstableness n
unˈstably adv

un•sta•ble

(ʌnˈsteɪ bəl)

adj.
1. not stable; not firm or firmly fixed; unsteady.
2. liable to change or fluctuate quickly: an unstable weather pattern.
3. marked by emotional instability.
4. unsteadfast; inconstant; wavering.
5. irregular in movement.
6. noting chemical compounds that readily decompose or change into other compounds.
[1175–1225]
un•sta′ble•ness, n.
un•sta′bly, adv.

un·sta·ble

(ŭn-stā′bəl)
1. Liable to change spontaneously into a nucleus or atomic particle with less mass. For example, the nucleus of uranium 238 is unstable and changes by radioactive decay into the nucleus of thorium 234, a lighter element.
2. Relating to a chemical compound that decomposes or changes into other compounds or into elements easily. Candle wax, for example, which is made of a mixture of hydrocarbons, decomposes into carbon dioxide and water when it reacts with oxygen during combustion.
3. Relating to an atom or chemical element that is likely to share electrons; reactive.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unstable - lacking stability or fixity or firmnessunstable - lacking stability or fixity or firmness; "unstable political conditions"; "the tower proved to be unstable in the high wind"; "an unstable world economy"
inconstant - likely to change frequently often without apparent or cogent reason; variable; "inconstant affections"; "an inconstant lover"; "swear not by...the inconstant moon"- Shakespeare
impermanent, temporary - not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing"
unsteady - subject to change or variation; "her unsteady walk"; "his hand was unsteady as he poured the wine"; "an unsteady voice"
stable - resistant to change of position or condition; "a stable ladder"; "a stable peace"; "a stable relationship"; "stable prices"
2.unstable - highly or violently reactiveunstable - highly or violently reactive; "sensitive and highly unstable compounds"
reactive - participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
3.unstable - affording no ease or reassurance; "a precarious truce"
uneasy - lacking a sense of security or affording no ease or reassurance; "farmers were uneasy until rain finally came"; "uneasy about his health"; "gave an uneasy laugh"; "uneasy lies the head that wears the crown"; "an uneasy coalition government"; "an uneasy calm"; "an uneasy silence fell on the group"
4.unstable - suffering from severe mental illnessunstable - suffering from severe mental illness; "of unsound mind"
insane - afflicted with or characteristic of mental derangement; "was declared insane"; "insane laughter"
5.unstable - disposed to psychological variability; "his rather unstable religious convictions"
irresolute - uncertain how to act or proceed; "the committee was timid and mediocre and irresolute"
6.unstable - subject to change; variable; "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"
changeful, changeable - such that alteration is possible; having a marked tendency to change; "changeable behavior"; "changeable moods"; "changeable prices"

unstable

adjective
1. changeable, volatile, unpredictable, variable, fluctuating, unsteady, fitful, inconstant The situation is unstable and potentially dangerous.
changeable stable, steady, predictable, constant
2. insecure, shaky, precarious, unsettled, wobbly, tottering, rickety, unsteady, not fixed a house built on unstable foundations

unstable

adjective
Translations
nestabilní
ustabil
horjuva
nestabilan
不安定な
불안정한
nestabilen
instabil
ไม่มั่นคง
không ổn định

unstable

[ˈʌnˈsteɪbl] ADJ
1. (= unsafe) [building, construction] → inestable, poco firme, poco sólido
2. (= unpredictable) [condition, economy, prices] → inestable
the country is politically unstableel país es inestable desde el punto de vista político
3. [weather] → inestable, variable
4. (Psych) [person, character] → inestable
mentally/emotionally unstablementalmente/emocionalmente inestable
5. (Phys) [matter, molecule] → inestable

unstable

[ʌnˈsteɪbəl] adj
(= likely to move or fall) [rock formation, ladder] → instable
(= volatile) [situation, government, share prices] → instable
(emotionally) [person] → instable
(CHEMISTRY, PHYSICS) [compound, particle, isotope] → instable

unstable

adj
structurenicht or wenig stabil; foundations also, areaunsicher; vehicle, government, countryinstabil; weatherunbeständig; economyunsicher, schwankend; pricesschwankend; (Chem, Phys) → instabil; the patient is in an unstable conditionder Zustand des Patienten ist labil or nicht stabil
(Psych, mentally) → labil; mentally/emotionally unstablegeistig/emotional labil

unstable

[ʌnˈsteɪbl] adj (structure, situation) (Chem, Phys) → instabile; (person) → squilibrato/a

unstable

غَيْرُ مُسْتَقِرّ nestabilní ustabil instabil ανισόρροπος inestable horjuva instable nestabilan instabile 不安定な 불안정한 onstabiel ustabil chwiejny instável нестабильный instabil ไม่มั่นคง dengesiz không ổn định 不稳定的

unstable

a. inestable;
___ anginaangina ___;
___ bladdervejiga ___.

unstable

adj inestable
References in periodicals archive ?
Two years of medical procedures, bouts of pneumonia, surgery to mend an unstable fracture followed by a year of relearning how to walk, and the effects of advanced endometriosis left L.
For instance, unstable fracture configurations may not be amenable to single-bone fixation, which may not have been included in retrospective reviews.
Internal fixation may be considered for cases of persistent pain or those that progress to an unstable fracture.
Keywords: Less-invasive stabilisation system (LISS), Minimally invasive osteosynthesis, Proximal femur, Unstable fracture.
They theorized that over time with compression of the fracture and dynamization of the nail in the setting of an unstable fracture pattern there was toggling of the nail within the intramedullary canal which led to the medial migration of the lag screw during repeated axial loading [11].
sup][4],[5] Therefore, treatment of an unstable fracture must restore the stability and continuity of the posterior pelvic ring.
One girl suffered an unstable fracture to one of the vertebra in her neck, as a result of which she had to wear a neck brace for some months, ten broken ribs and internal damage to her spleen, lungs and an artery to her brain.
We would X-ray quickly to assess whether it is an unstable fracture or relatively simple - in other words, if the bones aren't going to displace or get to a funny position.
Communited and rotational unstable fracture of femur treated with intelocking nailing.
Hangman's fracture is an unstable fracture through the pars interarticularis (the posterior elements of the axis).
In another study, (14,15) several configurations of the ESF-IM pin tie-in applied to a plastic bone model were mechanically evaluated to quantify the relative importance of specific parameters affecting the apparatus rigidity when applied to unstable fracture models.
At initial condition, the fiber is fully embedded in cementitious matrix during the elastic stage, when the fracture process is generated (Figure 6), the normal and lateral crack exist instantaneously, and then unstable fracture process being established (Figure 7).