Erosion
An erosion is an eating away of a surface. ("Erodere" in Latin means to eat out.) For example, a skin erosion is a loss of part or all of the epidermis (the outer layer) leaving a denuded surface. For another example, tooth erosion is a gradual loss of the normally hard surface of the tooth because of chemical processes.
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1. A wearing away or a state of being worn away, as by friction or pressure. Cf.:corrosion. 2. A shallow ulcer; in the stomach and intestine, an ulcer limited to the mucosa, with no penetration of the muscularis mucosa. 3. The wearing away of a tooth by chemical action or abrasive; when the cause is unknown, it is referred to as idiopathic e.. SYN: odontolysis. [L. erosio, fr. erodo, to gnaw away]
- Dieulafoy e. acute ulcerative gastroenteritis complicating pneumonia, possibly caused by overproduction of adrenal steroid hormones.
- recurrent corneal e. repeated vesiculation followed by exfoliation of the corneal epithelium.

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ero·sion i-'rō-zhən n
1 a) the superficial destruction of a surface area of tissue (as mucous membrane) by inflammation, ulceration, or trauma <\erosion of the uterine cervix>
b) progressive loss of the hard substance of a tooth
2) an instance or product of erosion <a circular \erosion on the skin>

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n.
1. an eating away of surface tissue by physical or chemical processes, including those associated with inflammation. A cervical erosion is an abnormal area of epithelium that may develop at the neck of the uterus due to tissue damage caused at childbirth or by attempts at abortion. In the skin an erosion represents a superficial type of ulceration and therefore heals quite readily.
2. (in dentistry) loss of surface tooth substance, usually caused by repeated application of acid, which softens the enamel surface. It may result from excessive intake of citrus drinks, citrus fruits, or carbonated drinks or by regurgitation of acid from the stomach, as in bulimia nervosa, hiatus hernia, alcoholism, or stress. The teeth become very sensitive. The cause should be corrected; severe cases may require extensive dental restorations.

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ero·sion (ə-roґzhən) [L. erosio, from erodere to eat out] 1. the wearing away or destruction of the surface of a tissue, material, or structure. 2. progressive loss of the hard substance of a tooth by chemical processes that do not involve bacterial action. See also abrasion and attrition. 3. a gradual breakdown or shallow ulceration of the skin, involving only the epidermis; it usually heals without scarring.

Erosion of the lingual surfaces of the maxillary teeth, showing concave depressions of the dentin surrounded by elevated rims of enamel.


Medical dictionary. 2011.

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  • Erosion — Erosion …   Deutsch Wörterbuch

  • ÉROSION — Les articles relatifs à l’érosion mettent en général l’accent sur l’inventaire des agents de l’érosion et sur la description des mécanismes qui en règlent l’intensité. Un de leurs objectifs essentiels est de montrer comment l’érosion constitue un …   Encyclopédie Universelle

  • Erosion — is the carrying away or displacement of solids (sediment, soil, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down slope movement in response to gravity or by living organisms (in the case …   Wikipedia

  • Erosion — Érosion Pour les articles homonymes, voir Érosion (homonymie). Fichier:Bryce Canyon Hoodoo Row.jpg Les pinacles de Bryce Canyon dans l Utah, aux États Unis. La roche a été façonnée par l érosion …   Wikipédia en Français

  • Erosión — Saltar a navegación, búsqueda Se denomina erosión al proceso de sustracción o desgaste de la roca del suelo intacto (roca madre), por acción de procesos geológicos exógenos como las corrientes superficiales de agua o hielo glaciar, el viento o la …   Wikipedia Español

  • Erosion — Erosion, auch Abtragung, die Gesamtheit derjenigen mechanischen und auch chemischen Erscheinungen, die auf die Zerstörung, vornehmlich aber auf die mechanische Auflockerung der Gesteine und auf die Weiterbeförderung der Bruchstücke und kleinen… …   Lexikon der gesamten Technik

  • Erosion — (v. lat. erodere ‚abtragen‘), als Vorgang Erodieren, steht für: Erosion (Geologie), im geologischen Sinne der Prozess des Abtrags von verwittertem Gestein und Boden Bodenerosion, Abtrag von Boden durch Wind und Wasser; verstärkt durch… …   Deutsch Wikipedia

  • Erosion — E*ro sion, n. [L. erosio. See {Erode}.] 1. The act or operation of eroding or eating away. [1913 Webster] 2. The state of being eaten away; corrosion; canker. [1913 Webster] 3. The wearing away of the earth s surface by any natural process. The… …   The Collaborative International Dictionary of English

  • Erosion — Sf zerstörende Wirkung der Witterung auf die Erdoberfläche erw. fach. (19. Jh.) Entlehnung. Entlehnt aus l. ērōsio ( ōnis) das Zerfressenwerden , einer Ableitung von l. ērōdere wegnagen , zu l. rōdere nagen und l. ex . Verb: erodieren.    Ebenso… …   Etymologisches Wörterbuch der deutschen sprache

  • erosión — sustantivo femenino 1. (no contable) Desgaste que en la superficie de un cuerpo produce el roce de otro cuerpo: La erosión de las pisadas hace que los escalones del metro estén así de gastados. 2. (no contable) Área: geología Desgaste de la… …   Diccionario Salamanca de la Lengua Española

  • erosión — gradual destrucción por desgaste de una superficie, como la de una mucosa o la de la epidermis, como consecuencia de un proceso inflamatorio, lesiones u otros efectos CIE 10 [véase http://www.iqb.es/patologia/erosion.htm] imagen clínica [véase… …   Diccionario médico

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