pathological

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pathological

(less commonly), pathologic
1. of or relating to pathology
2. relating to, involving, or caused by disease
3. Informal compulsively motivated

pathological

(1)
[scientific computation] Used of a data set that is grossly atypical of normal expected input, especially one that exposes a weakness or bug in whatever algorithm one is using. An algorithm that can be broken by pathological inputs may still be useful if such inputs are very unlikely to occur in practice.

pathological

(2)
When used of test input, implies that it was purposefully engineered as a worst case. The implication in both senses is that the data is spectacularly ill-conditioned or that someone had to explicitly set out to break the algorithm in order to come up with such a crazy example.

pathological

(3)
Also said of an unlikely collection of circumstances. "If the network is down and comes up halfway through the execution of that command by root, the system may just crash." "Yes, but that's a pathological case." Often used to dismiss the case from discussion, with the implication that the consequences are acceptable, since they will happen so infrequently (if at all) that it doesn't seem worth going to the extra trouble to handle that case (see sense 1).
References in periodicals archive ?
Pathologically, retention cysts are lined by normal flat ductal epithelium without atypia (3).
In addition, goblet cell carcinoid ex adenocarcinoma usually presented with a coelomic peritoneal spreading pattern, especially in late stage; we suggested if tumors with goblet cell crypt-like pattern were found pathologically in the abdominal cavity, clinically presenting with coelomic dissemination, rather than solid organ metastasis, differential diagnosis of the entity may be included and clinical intervention of appendix should be done.
Although many hypotheses are claimed in the pathogenesis, there is still no clarity about this issue.2 Our case is a 41-year old patient with many palpable masses in the scrotum since 10 years, clinically and pathologically diagnosed with scrotal calcinosis in whom the disease relapsed after surgery.
BEIRUT: Cesar, the concierge of an apartment block, is pathologically depressed.
Yolande Pijnenburg says FTD is "pathologically heterogeneous."
Although many developers prefer this method, it can cause excessive disk-seeking and file-locking in the parallel storage system and can result in pathologically poor bandwidth.
Adults in the top fifth of added sugar consumption were 3 times more likely to have a pathologically low concentration than adults in the bottom fifth (odds ratio 3.1, 2.3-4.3).
The patients with NPE presented with high intracranial pressure and pathologically high cardiac biomarkers.
All Rights Reserved LA - an overwhelmed erotic dancer (Biel), a grieving husband (Whitaker), a terminally ill ex-con (Liotta) and a pathologically shy mortician (Redmayne).
Recording five verdicts of accidental death, Christopher Johnson said: "It is inconceivable to me that Mr Mercer would drive his car the way he did unless he had had some kind of medical event, although pathologically it has not been possible to show that.
In the study, futile thoracotomy was defined as a benign lung lesion; pathologically proven mediastinal lymph node involvement (stage IIIA), IIIB, or IV disease; inoperable T3 or T4 disease; or recurrent disease or death from any cause within one year of randomization.
65 years), the groups were comparable clinically and pathologically. Although the RALP group had a longer median operative time (185 vs.