atypical


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atypical

 [a-tip´ĭ-k'l]
irregular; not conformable to the type.

a·typ·i·cal

(ā-tip'i-kal),
Not typical; not corresponding to the normal form or type.
[G. a- priv. + typikos, conformed to a type]

atypical

/atyp·i·cal/ (-ĭ-k'l) irregular; not conformable to the type; in microbiology, applied specifically to strains of unusual type.

atypical

(ā-tĭp′ĭ-kəl) also

atypic

(-ĭk)
adj.
Not conforming to type; unusual or irregular.

a′typ·i·cal′i·ty (-kăl′ĭ-tē) n.
a·typ′i·cal·ly adv.

atypical

[ātip′əkəl]
Etymology: Gk, a + typos, without type
a condition or object that is not of a usual or standard type.

atypical

A highly nonspecific adjective, meaning not normal or typical.
 
Medspeak
Referring to a clinical presentation which is somewhat unexpected—e.g., stage-IV colorectal cancer without bleeding or obstruction.

Pathology
Referring to a histopathological finding which would in a certain number of cases undergo malignant transformation.
 
Psychology
Referring to a mental state between banal and insane.

atypical

adjective Not normal, irregular, abnormal, not conforming to a type, abnormal in presentation, morphology, appearance or behavior

a·typ·i·cal

(ā-tip'i-kăl)
Denotes the unexpected or unanticipated; not corresponding to the normal form or type.
[G. a- priv. + typikos, conformed to a type]

atypical

unusual or abnormal

a·typ·i·cal

(ā-tip'i-kăl)
Denotes the unexpected or unanticipated; not corresponding to the normal form or type.
[G. a- priv. + typikos, conformed to a type]

atypical (ātip´ikəl),

adj pertaining to deviation from the basic or typical.

atypical

irregular; not conformable to the type.

atypical disease
a form of a disease which differs significantly in clinical signs or pathological lesions from classical or textbook forms of the disease, e.g. bovine atypical interstitial pneumonia.
atypical fever
a fever in which temperature variations are irregular.
atypical mycobacterial granuloma
see opportunist mycobacterial granuloma.
References in periodicals archive ?
The number needed to harm (one atypical femoral fracture) was 2,000 per year (N.
However, individuals with atypical MDD had nearly four times greater odds of obesity (odds ratio, 3.
Published in August, a prospective observational cohort study conducted by the Institute for Clinical Teratology and Drug Risk Assessment in Pregnancy in Germany compared the risk for major malformations and other adverse pregnancy outcomes among 561 women exposed to atypical antipsychotics, 284 women exposed to typical antipsychotics, and 1,122 pregnant women treated with medications known not to be harmful during pregnancy (the reference group) from January 1997 to March 2009.
Abbreviations: AGC, atypical glandular cells; AIS, adenocarcinoma in situ; ASC-H, atypical squamous cells, a highgrade squamous intraepithelial lesion cannot be ruled out; ASC-US, atypical squamous cells; HSIL, high-grade squamous intraepithelial lesion; LSIL, low-grade squamous intraepithelial lesion; LSIL-H, low-grade squamous intraepithelial lesion, a high-grade squamous intraepithelial lesion cannot be ruled out; SCCA, squamous cell carcinoma.
After it confirmed the case of atypical BSE, the World Animal Health Organization issued a statement maintaining Brazil's status as a low-risk country for mad cow disease.
The term atypical is not informative, and a new name has been proposed for these bovine pestiviruses (5).
Atypical pneumonia affects nearly one in five people who contract pneumonia and is a significant source of morbidity for patients and costs to healthcare providers.
Atypical subtrochanteric and diaphyseal femoral fractures; report of a task force of the American Society for Mineral Research.
Being at risk of atypical fracture is relatively small.
Statistical comparisons of parameters were performed among three groups: (1) the atypical 2009 recordings, (2) control A songs, and (3) control B songs.
The most recent atypical anti-psychotics were developed in the 1990s.
The number of atypical moles was significantly related to increased risk (P = .