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Dugdale, Richard Louis

(Encyclopedia)Dugdale, Richard Louis dŭgˈdāl [key], 1841–83, American social investigator, b. Paris. While inspecting (1874) county jails for the New York Prison Association, he developed data for his famous s...

Schengen Agreement

(Encyclopedia)Schengen Agreement shĕngˈən [key], agreement signed in 1985 in Schengen, Luxembourg, by several European Community (now the European Union; EU) to establish a mutual visa policy that would permit f...

psoriasis

(Encyclopedia)psoriasis sôrīˈəsĭs [key], occasionally acute but usually chronic and recurrent inflammation of the skin. The exact cause is unknown, but the disease appears to be an inherited, possibly autoimmu...

Pol Pot

(Encyclopedia)Pol Pot, 1925–98, Cambodian political leader, originally named Saloth Sar. Paris-educated, and a Khmer Communist leader from 1960, he led Khmer Rouge guerrillas against the government of Lon Nol aft...

polycythemia

(Encyclopedia)polycythemia pŏlˌēsīthēˈmēə [key], condition characterized by an increase in the production of red blood cells, or erythrocytes, in the blood. Primary polycythemia, also called erythremia, or ...

Eustachian tube

(Encyclopedia)Eustachian tube yo͞ostāˈshən [key] [for Bartolomeo Eustachi], a hollow structure of bone and cartilage extending from the middle ear to the rear of the throat, or pharynx, technically known as the...

Epstein-Barr virus

(Encyclopedia)Epstein-Barr virus (EBV), herpesvirus that is the major cause of infectious mononucleosis and is associated with a number of cancers, particularly lymphomas in immunosuppressed persons, including pers...

ergot

(Encyclopedia)ergot ûrˈgət [key], disease of rye and other cereals caused by the fungus Claviceps purpurea. The cottony, matlike body, or mycelium, of the fungus develops in the ovaries of the host plant; it eve...

conjunctivitis

(Encyclopedia)conjunctivitis kənjəngtəvīˈtəs [key], inflammation or infection of the mucosal membrane that covers the eyeball and lines the eyelid, usually acute, caused by a virus or, less often, by a bacill...
 

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