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Complete removal of an organ or other body part by disease or surgical excision.
Closure of a lumen.
Loss of memory or consciousness of specific events.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(1) In medicine, the complete closure of a hollow or tubular organ as a result of proliferation of tissue—usually connective tissue—from the organ’s walls. Obliteration usually results from an inflammation; more rarely, from the proliferation of a tumor. Obliteration can produce serious disorders, for example, endarteritis obliterans. Retention cysts, such as atheromas, can develop from the obliteration of certain ducts, including glandular ducts. Complete obliteration of the oviducts leads to sterility. Obliteration can also be a healthy sign or condition. For example, obliteration of the pleural cavity in pleurisy is an indication of healing, and obliteration of the vaginal process of the peritoneum occurs in the normal course of development.

(2) In botany, the normal flattening of cells and tissues. The intercellular and intracellular cavities of a plant can be filled because of obliteration. Examples of the disappearance of internal cavities because of obliteration can be found in the membranes of some fruits, in the tissues of a developing embryo, and in a plant stem that is growing thicker.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Addressing students at an international business school in Shanghai, Mrs McAleese said: "Britain as a coloniser went to extraordinary lengths to obliterate Irish culture and language.
And above all, don't obliterate every insect you encounter - determine which groups are causing harm, and eliminate only the really bad pests.
"There is a serious possibility that Lower Manhattan will no longer thrive and that unsympathetic physical changes will obliterate some of the finest of the historic buildings in New York City," the study warns.
Natural selection would obliterate the material's value as a molecular clock, useful as a means to reconstruct human evolution, Wolpoff says.
It's strange that someone who went to an all-male school is on a crusade to obliterate a school designed to provide a safe haven for gay students, instead of battling to reintegrate his old alma matter with women.
KATHARINE MERRY last night recorded a personal best in the 400 metres to obliterate a world-class field in Athens.
This point bears repeating: There is no Social Security emergency as such; there is no need now to rush into commitments that will restrain or obliterate investments the nation needs to make today in its human capital--investments in health care, nutrition, and education.
However, the mass would nearly obliterate the hypopharynx and supraglottis when the patient swallowed it.
One might have thought the idea of "same-sex marriage" was a joke, a reductio ad absurdum of the continuing campaign to obliterate the idea of the normal.
There are a great variety of foes, including the horrible fac- huggers that obliterate your screen.
The historical precedent for Lins's work is perhaps what Lucy Lippard termed "eccentric abstraction" in an essay for a show she organized in 1966: in brief, the fusion of surrealism and primary-structure Minimalism into a self-sufficient whole that would irreverently obliterate a host of dichotomies--form/content, flat/deep, negative/positive, even painting/ sculpture.