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giardiasis

(Encyclopedia)giardiasis jēärdīˈəsĭs, järdīˈəsĭs [key], infection of the small intestine by a protozoan, Giardia lamblia. Giardia, which was named after Alfred M. Giard, a French biologist, is spread via...

Gilman, Alfred Goodman

(Encyclopedia)Gilman, Alfred Goodman, 1941–2015, American biochemist, b. New Haven, Conn., M.D., Ph.D. Case Western Reserve Univ., 1969. He taught at the Univ. of Virginia (1971–1981) before becoming a professo...

gamma globulin

(Encyclopedia)gamma globulin, a group of globulin proteins in human blood plasma, including most antibodies. These antibody substances are produced as a protective reaction of the body's immune system to the invasi...

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...

moon worship

(Encyclopedia)moon worship. Although the moon has not had great prominence in the history of religion, the worship of it has been known since earliest recorded time—in the oldest literatures of Egypt, Babylonia, ...

astigmatism

(Encyclopedia)astigmatism əstĭgˈmətĭzˌəm [key], type of faulty vision caused by a nonuniform curvature in the refractive surfaces—usually the cornea, less frequently the lens—of the eye. As a result, lig...

longevity

(Encyclopedia)longevity lŏnjĕvˈĭtē [key], term denoting the length or duration of the life of an animal or plant, often used to indicate an unusually long life. The average human life-span of threescore and te...

magnetic resonance imaging

(Encyclopedia)magnetic resonance imaging (MRI), noninvasive diagnostic technique that uses nuclear magnetic resonance to produce cross-sectional images of organs and other internal body structures. The patient lies...

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...