erosion

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Related to erosional: depositional

erosion

 [e-ro´zhun]
an eating or gnawing away; a shallow or superficial ulceration; in dentistry, the wasting away or loss of substance of a tooth by a chemical process that does not involve known bacterial action. adj., adj ero´sive.
cervical erosion destruction of the squamous epithelium of the vaginal portion of the cervix, due to irritation and later ulceration.

e·ro·sion

(ē-rō'zhŭn),
1. A wearing away or a state of being worn away, as by friction or pressure. Compare: corrosion.
2. A shallow ulcer; in the stomach and intestine, an ulcer limited to the mucosa, with no penetration of the muscularis mucosa.
3. Chemically induced tooth loss, occurring mainly through acid dissolution. When the cause is unknown, it is referred to as idiopathic erosion. Synonym(s): odontolysis
[L. erosio, fr. erodo, to gnaw away]

erosion

(ĭ-rō′zhən)
n.
The superficial destruction of a surface by friction, pressure, ulceration, or trauma.

erosive (ĭ-rō′sĭv) adj.

erosion

A wearing away, ulceration. See Apple core erosion, Cervical erosion.

e·ro·sion

(ē-rō'zhŭn)
1. A wearing away or a state of being worn away, as by friction or pressure.
2. A shallow ulcer; in the stomach and intestine, an ulcer limited to the mucosa, with no penetration of the muscularis mucosae.
3. The wearing away of a tooth by nonbacterial chemical action; when the cause is unknown, it is referred to as idiopathic erosion.
Synonym(s): odontolysis.
[L. erosio, fr. erodo, to gnaw away]

erosion

the wearing away of geological formations such as rock, soil, etc. For example, deafforestation or the removal of hedges causes soil erosion.

e·ro·sion

(ē-rō'zhŭn)
1. Chemically induced tooth loss, occurring mainly through acid dissolution. When the cause is unknown, it is referred to as idiopathic erosion.
Synonym(s): odontolysis.
2. A wearing away or a state of being worn away, as by friction or pressure.
Compare: corrosion
[L. erosio, fr. erodo, to gnaw away]
References in periodicals archive ?
The Traku Voke cross-section includes the surface of an undulating glaciofluvial plain grading into a flat-bottomed erosional gully.
ESTRUCTURAL - SUPERFICIES Ondulaciones EROSIONAL ONDULADAS Arcillolitas SUPERFICIES Ondulaciones ONDULADAS Con cobertura eolica ALTILLANURA PLANA Plano de terraza (TERRAZA Depresiones - bajos ESTRUCTURAL) Depositos aluviales antiguos.
This well-expressed erosional surface between two units of regional stage-scale could be interpreted as a sequence boundary (Catuneanu 2006).
In each portion, the concentrations and inventories of SOC and TN followed a similar distribution pattern to [sup.137]Cs inventories from erosional to depositional areas; that is, SOC and TN increased with increasing [sup.137]Cs (Table 1).
In this group, both preservation biases from weathering and erosional processes have been recognized.
Subsequent sections address how modern geoscience can contribute to military operations, with discussion of deserts, the hydrogeologic character of physiographic provinces in Afghanistan and the impact of sustainable, high-quality water supplies, the importance of understanding the source regions of soluble salt-rich desert dust, and aspects of military environmental stewardship, including how military installations have become biological reserves; military land management challenges in the southwest US; drylands in the western US; the nature of biological soil crusts in the desert; how nearshore bathymetry, wave and nearshore circulation, and underlying geology can be used to identify localized erosional hotspots; and whether wilderness exists on military lands.
Transtensional faulting appears to have exposed basement rocks at the surface within former fans and/or basins that had previously been accumulating erosional debris derived almost exclusively from the Mira terrane.
The Permian-Triassic boundary located near Haftad Gholleh is an erosional unconformity or disconformity, as in other parts of Iran, where Permian sequences contain dolomitic limestone, shale and sandstone situated below the Triassic sequence at a disconformity.
Hypsometric integrals (HIs) and hypsometric curves (HCs) for each individual subbasin were calculated to evaluate the degree of erosional stages and the factors controlling it.
Washington, Feb 25 ( ANI ): A new study has supported the theory of erosional origin of some linear dunes that are widespread on Earth and Saturn's moon, Titan.
Native sulphur, opaline/chalcedonic silica, quartz-alunite alteration, barite veining exposed in erosional windows