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radiology

(Encyclopedia)radiology, branch of medicine specializing in the use of X rays, gamma rays, radioactive isotopes, and other forms of radiation in the diagnosis and treatment of disease. X ray machines and fluoroscop...

Varmus, Harold Eliot

(Encyclopedia)Varmus, Harold Eliot, 1939–, American microbiologist, b. Oceanside, N.Y., M.D. Columbia Univ., 1966. A professor at the Univ. of California School of Medicine in San Francisco, Varmus and his co-res...

Hartwell, Leland Harrison

(Encyclopedia)Hartwell, Leland Harrison, 1939–, American cell biologist, b. Los Angeles, Ph.D. Massachusetts Institute of Technology, 1964. He is a professor at the Univ. of Washington (1968–) and since 1997 ha...

aflatoxins

(Encyclopedia)aflatoxins ăfˈlətäkˌsĭnz [key], a group of secondary metabolites that are cancer-causing byproducts of a mold that grows on nuts and grains, particularly peanuts. Although aflatoxin is most comm...

Rose, Irwin

(Encyclopedia)Rose, Irwin, 1926–2015, American biochemist, b. Brooklyn, N.Y., Ph.D. Univ. of Chicago, 1952. Rose was on the faculty of Yale Medical School from 1954 to 1963 and a senior member of the Fox Chase Ca...

Capricornus

(Encyclopedia)Capricornus kăprĭkôrˈnəs [key] [Lat.,=the goat horn], inconspicuous southern constellation lying on the ecliptic (the sun's apparent path through the heavens) between Sagittarius and Aquarius; it...

epidemiology

(Encyclopedia)epidemiology, field of medicine concerned with the study of epidemics, outbreaks of disease that affect large numbers of people. Epidemiologists, using sophisticated statistical analyses, field invest...

Chernobyl

(Encyclopedia)Chernobyl chĭrnōˈbyēl [key], Ukr. Chornobyl, abandoned city, N Ukraine, near the Belarus border, on the Pripyat River. Ten miles (16 km) to the north, in the town of Pripyat, is the Chernobyl nucl...

fistula

(Encyclopedia)fistula fĭsˈcho͝olə [key], abnormal, usually ulcerous channellike formation between two internal organs or between an internal organ and the skin. It may follow a surgical procedure with improper ...

CAT scan

(Encyclopedia)CAT scan kăt [key] [computerized axial tomography], X-ray technique that allows relatively safe, painless, and rapid diagnosis in previously inaccessible areas of the body; also called CT scan. An X-...