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Possible definitions for iad

AIDS
Fatal transmissible disorder caused by HIV. AIDS, the last stage of HIV infection, is defined by the appearance of potentially lethal opportunistic infections. The first AIDS cases were identified in 1981, HIV was isolated in 1983, and blood tests were developed by 1985. In 2000, more than 35 million people worldwide were living with HIV, and over 15 million had died of AIDS. In the U.S., some 2 million people had been infected with HIV, 800,000 had been diagnosed with AIDS, and 450,000 had died. Sub-Saharan Africa remains the focus of infection, but the number of cases in S. and S.E. Asia and elsewhere continues to mount at an alarming rate as well. An initial acute illness usually resolves within weeks. Infected persons then generally have few or no symptoms for about 10 years. As the immune system deteriorates, they develop diseases such as Pneumocystis carinii pneumonia, cytomegalovirus, lymphoma, or Kaposi's sarcoma.


Dada
Nihilistic movement in the arts that originated in Zurich in 1916 and flourished in New York, Berlin, Cologne, Paris, and Hannover in the early 20th cent. The name, French for "hobbyhorse," selected by a chance procedure, was adopted by a group of artists incl. J. Arp, M. Duchamp, M. Ray, and F. Picabia to symbolize their emphasis on the illogical and absurd, growing out of disgust with bourgeois values and despair over World War I. The archetypal Dada forms of expression were the nonsense poem and the ready-made. Dada had far-reaching effects on the art of the 20th cent.; the creative techniques of accident and chance were sustained in Surrealism, Abstract Expressionism, conceptual art, and Pop art.


dado
In Classical architecture, the plain portion of the pedestal of a column, between the base and the cornice (or cap). In later architecture, a dado is a wall's paneled or decorated lower part, up to 2-3 ft (60-90 cm) above the floor and defined by a horizontal molding. Interior walls were so treated especially in the 16th-18th cent. In carpentry, a dado is a rectangular groove cut across the grain of a wood member.


Iasi
City (pop., 1994 est.: 340,000), NE Romania. Located west of the border with Moldova and northeast of Bucharest, it is on the Bahlui River. It was settled as early as the 7th cent., and in the 15th cent. it became a customs post on the trade routes along the Prut River valley. From 1565 to 1862 it was the capital of Moldavia. It was burned by Tatars in 1513, by Turks in 1538, and by Russians in 1686. It is the site of a university, the 16th-cent. Church of St. Nicholas, and a national theater.


id
In Freudian psychoanalytic theory, one of the three aspects of the human personality, along with the ego and superego. The id is the source of instinctual impulses such as sex and aggression as well as primitive needs that exist at birth. It is entirely nonrational and functions according to the pleasure-pain ...

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