washout


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washout

1. Geology
a. erosion of the earth's surface by the action of running water
b. a narrow channel produced by this erosion
2. Aeronautics a decrease in the angle of attack of an aircraft wing towards the wing tip
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

washout

[′wäsh‚au̇t]
(engineering)
An overlarge well bore caused by the solvent and erosional action of drilling fluid.
A fluid-cut opening resulting from leaking fluid.
(mining engineering)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(13) also reported that leaky blood vessels accounted for early washout of contrast material on two-phase CT scans.
The ADC values demonstrated a moderate positive correlation with nT2SI (r=0.404, p=0.000), a moderate negative correlation with SI on DWI (b=2000 [mm.sup.2]/s) (r=-0.403, p=0.000), and a weak negative correlation with washout percentage (r=-0.332, p=0.003).
Conclusion: This study concluded that quantitative washout calculated on Triphasic CT scan is a highly sensitive and accurate non-invasive modality for diagnosis of hepatocellular carcinoma.
In total, 56 of the 74 papers which were analyzed listed washout durations for the prostaglandin analogues.
Patients with burst abdomen were given an emergency wash out and laparotomy or abdominal washout with deep tension sutures.
The washout pattern on diuretic renogram is an important component of the assessment of both obstruction and the surgical success rate, but its value in neonates and infants is controversial.
Using several rods will serve you best, and you should fish them on the sides of the washouts and then cover the center as well.
Owner of Barry Island Pleasure Park James Danter said this weekend has been a "washout" compared to the Easter period when crowds flocked to the funfair.
Clinical and laboratory data associated with hyperlipidemia and insulin resistance were obtained at baseline, at the end of the first treatment period, after the washout, and again after the second treatment period.
The continuous stirred tank reactors (CSTR) could be used to washout microorganisms by applying an HRT lower than their growth rate or a D higher than the growth rate.
Flipping through a magazine in his boss's office one day, he found the solution: a simple, small trailer that contains the washout, which can be removed from the site and disposed of properly.