sporadic


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sporadic

 [spŏ-rad´ik]
occurring singly; widely scattered; not epidemic or endemic.

spo·rad·ic

(spō-rad'ik),
1. Denoting a temporal pattern of disease occurrence in an animal or human population in which the disease occurs only rarely and without regularity.
2. In the genetic context, sporadic denotes a singleton or sport. Several quite different and disparate phenomena are covered by this term, including a new mutation; occult nonpaternity; the chance outcome for a recessive trait in two carrier parents with a small family; extreme variability in the expression of a gene; an environmental phenocopy; a multilocal genocopy, etc. No useful properties can be predicated of all members of this class; and the term is notionally useless.
3. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]

sporadic

/spo·rad·ic/ (spo-rad´ic) occurring singly; widely scattered; not epidemic or endemic.

sporadic

(spə-răd′ĭk, spô-)
adj.
1. Occurring at irregular intervals or in isolated or scattered places; having no pattern or order: his sporadic attendance in class; rebels who put up sporadic resistance.
2. Medicine Not epidemic, endemic, or inherited. Used of a disease or condition: Most cancers are sporadic, caused by genetic mutations that are not heritable.

spo·rad′i·cal·ly adv.
spo·rad′i·cal·ness n.

sporadic

[spôrat′ik]
Etymology: Gk, sporaden, scattered
(of a number of events) occurring at scattered, intermittent, and apparently random intervals.

sporadic

Epidemiology adjective Referring to a noninherited condition that arises rarely in a particular population Genetics adjective Referring to an event attributable to changes in somatic DNA, which may be inherited, but unpredictably

spo·rad·ic

(spōr-ad'ik)
1. Denoting a temporal pattern of disease occurrence in an animal or human population in which the disease occurs only rarely and without regularity.
See also: endemic, epidemic, epizootic
2. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]

sporadic

having a distribution confined to limited and dispersed localities; scattered.

Sporadic

Occurring at random or by chance, and not as a result of a genetically determined, or inherited, trait.

sporadic

irregular, i.e. occurring from time to time

spo·rad·ic

(spōr-ad'ik)
1. Denoting temporal pattern of disease occurrence in which the disease occurs only rarely and without regularity.
2. Occurring irregularly, haphazardly.
[G. sporadikos, scattered]

sporadic

occurring irregularly, usually infrequently.
References in periodicals archive ?
Tumor characteristics such as T stage, nodal status, and grade appeared to have similar prognostic effects in carriers and patients with sporadic disease, Dr.
For the sporadic cases they are CUB92005 (EU165503), CUB1803-2003 (EU 165494), CUB2-2005 (EF493155), and CUB27-2005 (EU165498).
We're sure she had sporadic CJD and a post-mortem is just going to confirm that.
Some, as expected, developed vCJD - but others displayed signs of sporadic CJD.
We have no evidence that Sporadic CJD comes from contaminated meat.
The gene-expression profiles of the two hereditary forms of cancer were distinctive and differed from each other as well as from the gene-expression profiles of the sporadic tumors.
Radstake and his colleagues at the University Hospital of Nijmegen (the Netherlands) studied 142 patients with sporadic rheumatoid arthritis and 36 patients with familial rheumatoid arthritis.
Influenza A(H3N2) viruses predominated during the 1993-94 season, but influenza B viruses also were isolated from persons with sporadic illness and from outbreak-associated cases.
MAX is designed to replace both sporadic classroom training as well as the outdated annual sales meeting, in which sales representatives leave with a binder of tools that typically remain shelved for the entire year.
Download Weather: Slight drop in temperature, sporadic rain NNA - The meteorology department at Rafic Hariri International Airport forecast Saturday's weather to be cloudy, with a slight drop in temperature degrees and sporadic rain.
Tenders are invited for Sporadic Work Outsourcing Contract 1.