erosion

Definitions

  • WordNet 3.6
    • n erosion erosion by chemical action
    • n erosion (geology) the mechanical process of wearing or grinding something down (as by particles washing over it)
    • n erosion a gradual decline of something "after the accounting scandal there was an erosion of confidence in the auditors"
    • n erosion condition in which the earth's surface is worn away by the action of water and wind
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Webster's Revised Unabridged Dictionary
    • Erosion a gradual reduction or lessening as if by an erosive force; as, erosion of political support due to scandal; erosion of buying power by inflation.
    • Erosion The act or operation of eroding or eating away.
    • Erosion The state of being eaten away; corrosion; canker.
    • Erosion The wearing away of the earth's surface by any natural process. The chief agent of erosion is running water; minor agents are glaciers, the wind, and waves breaking against the coast.
    • ***
Century Dictionary and Cyclopedia
    • n erosion The act or operation of eating or gnawing away.
    • n erosion Hence The act of wearing away by any means. Specifically— In gunnery, the wearing away of the metal around the interior of the vent, around the breech-mechanism, and on the surfaces of the bore and chamber of cannon, due to the action of powder-gas at the high pressures and temperatures reached in firing.
    • n erosion In zoology, the abrasion or wearing away of a surface or margin, as if by gnawing; the state of being erose; the act of eroding.
    • n erosion In geology, the wearing away of rocks by water and other agencies of geological change.
    • n erosion The state of being eaten or worn away; corrosion; canker; ulceration.
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Chambers's Twentieth Century Dictionary
    • n Erosion act or state of eating or being eaten away
    • ***

Quotations

  • Alice Thompson
    Alice Thompson
    “Inter-railers are the ambulatory equivalent of Macdonald's, walking testimony to the erosion of French culture.”

Etymology

Webster's Revised Unabridged Dictionary
L. erosio,. See Erode
Chambers's Twentieth Century Dictionary
L. e, out, rodĕre, rosum, to gnaw.

Usage

In literature:

The erosions of centuries had given it an appearance very like a fort.
"Oh, You Tex!" by William Macleod Raine
Its deeply grooved sides showed clearly the great work of erosion which had occurred and was still taking place in those regions.
"Across Unknown South America" by Arnold Henry Savage Landor
In steam turbines it will cause erosion of the blades.
"Steam, Its Generation and Use" by Babcock & Wilcox Co.
What arguments against this theory, except our not perceiving every step, like the erosion of valleys{185}.
"The Foundations of the Origin of Species" by Charles Darwin
In some especially severe cases the membrane is destroyed in spots, causing the appearance of ulcers or of erosions.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
Where the old erosion surface roughly coincides with the present erosion surface, the deposits follow more or less the topography.
"The Economic Aspect of Geology" by C. K. Leith
Those who believe that lakes are in many cases due to glaciers might yet admit that rivers have greater power of erosion.
"The Beauties of Nature" by Sir John Lubbock
First, they prevent erosion, or the washing away of soil by the water that falls as rain.
"Scouting For Girls, Official Handbook of the Girl Scouts" by Girl Scouts
Here the god of erosion works incessantly and rapidly, dissecting the earth and the rocks.
"Wild Life on the Rockies" by Enos A. Mills
Erosions, sedimentary deposits, and all those marks which point to a former occupation by water are notably absent.
"Astronomy of To-day" by Cecil G. Dolmage
It is said to present the appearance of such erosion as would result from the oxidation of some centuries.
"Chronicles of Border Warfare" by Alexander Scott Withers
Erosion has weathered slope and wall and crag.
"Tales of Fishes" by Zane Grey
The gentle convexity caused by aqueous erosion.
"Modern Painters Volume I (of V)" by John Ruskin
Thus the gods of erosion are the artists, while the builders of the mountains are only ordinary workmen.
"Under the Maples" by John Burroughs
The evidences adduced for determining the time, are the erosion caused by rivers and streams since the ice subsided.
"Nature's Miracles, Volume 1" by Elisha Gray
The upper part of Ladder Chine shows an interesting example of wind-erosion.
"The Geological Story of the Isle of Wight" by J. Cecil Hughes
She set her face determinedly against the erosive impatience of despair.
"Stranded in Arcady" by Francis Lynde
The current here is comparatively weak, so that there has been little erosion due to it.
"The Niagara River" by Archer Butler Hulbert
This erosive action is due to the gravel, sand, and mud carried along by the water.
"Geology" by James Geikie
This idea has been revived at intervals, but the trouble of erosion has always led to failure.
"Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 6" by Various
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In poetry:

And so you turned, pretending youth, courting
the girl as if you were a boy again,
leaving the wry cliffs to their erosion
and me to my observant solitude.
"Porth Ceiriad Bay" by Ben Jonson
These lawyers, six and four,
Was a livin at their ease,
A sendin of their writs abowt,
And droring in the fees,
When their erose a cirkimstance
As is like to make a breeze.
"Jacob Homnium’s Hoss" by William Makepeace Thackeray

In news:

Although built to the highest engineering standards for dikes at that time, the Corps built the dike with gravel, rock, limestone and sand, which allow water to seep through and cause erosion.
However, I must admit the recent Pew Research Center report on the continued erosion of our net worth gave me quite a jolt.
The Army Corps of Engineers is seeking a decision from East Hampton Town about what tack to take for future dredging of Montauk Harbor and erosion control along the nearby western shore.
There is serious erosion in the sanctuary, and the caretakers worry that it may get worse, but Westphal is using a novel technique to combat it: dredging .
Workers are erecting fences to help prevent erosion on newly built dunes .
Nor' easter Hampers Hurricane Cleanup as Erosion Concerns Grow for Some Residents.
In his speech on jobs last month, President Obama pointed to a decades-long erosion of the "compact" between American workers, their companies, and, more implicitly, Washington.
We are seeing accelerated erosion because of the loss of sea ice.
Nor'easter Hampers Hurricane Cleanup as Erosion Concerns Grow for Some Residents.
Medvedev defends erosion of his legacy.
Tucson News NowRussia's Medvedev defends erosion of his legacy.
The American Association of University Professors' National Council has issued a statement linking "the steady erosion of faculty governance" at Pennsylvania State University to the child-sex-abuse scandal there.
Protecting habitat, preventing erosion priorities for Schwarcks.
Contractors to review road threatened by lake erosion .
AMR risks cash erosion as troubles pile up.
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In science:

Note that at this place, we make essential use of the fact that we have an erosion flow; in fact, this is the only place in the proof of Theorem 9.6 where we will use this.
Stochastic flows in the Brownian web and net
Dynamics for the Brownian web and the erosion flow.
Stochastic flows in the Brownian web and net
Naive Conjecture: The three phenomena exhibited by (Hn ) and its graph – infinite recursive splitting, finite splitting, and comblike erosion – are the basic building blocks out of which every exchangeable hierarchy is made.
A representation of exchangeable hierarchies by sampling from real trees
Speaking loosely, (a) is problematic because there is “continuous erosion”, for which (41) cannot account, and (b) is problematic because (41) assumes that the “recursive splits” are well-ordered by inclusion.
A representation of exchangeable hierarchies by sampling from real trees
The DyDW and related systems have been considered as models for erosion and other hydrological phenomena (see ,).
Subdiffusive and Superdiffusive Exceptional Times in the Dynamical Discrete Web
Winter, A non-Markovian model of rill erosion.
Subdiffusive and Superdiffusive Exceptional Times in the Dynamical Discrete Web
Dynamics for the Brownian web and the erosion flow.
Subdiffusive and Superdiffusive Exceptional Times in the Dynamical Discrete Web
V the projectile erosion speed the one developed here: at relatively small velocities 0V = 1000 m/s).
Numerical simulation of high-speed penetration-perforation dynamics in layered armor shields
For example Milena implements morphological algorithms like dilation and erosion, reconstructions, etc. depending on the browsing strategy.
Writing Reusable Digital Geometry Algorithms in a Generic Image Processing Framework
It consists of two components, erosion score and score for joint space narrowing (JSN), which are obtained through examination of hand and/or feet joints with radiographic methods.
Detection of treatment effects by covariate-adjusted expected shortfall
The example presented in this paper is based on van der Heijde’s modification of TSS scoring system [van der Heijde (2000)], which is based on examination of 16 areas for erosions and 15 for joint space narrowing in each hand.
Detection of treatment effects by covariate-adjusted expected shortfall
The choice, therefore, has been to use damage models and stability criteria for the prediction of failure (at material points) and particle erosion for the simulation of fracture propagation.
Validation of the material point method and plasticity with Taylor impact tests
Including erosion effects in the simulation does not affect the result significantly.
Validation of the material point method and plasticity with Taylor impact tests
In the following sections we derive phenomenological expressions for the erosion rate Γ and the forces fdrag and fbed , which will finally lead to a closed model.
A Continuum Saltation Model for Sand Dunes
The model parameter ˜γ characterizes the strength of the erosion and determines how fast the system reaches the equilibrium or reacts to perturbations.
A Continuum Saltation Model for Sand Dunes
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