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Calabria
(Encyclopedia)Calabria käläˈbrēä [key], region, 5,822 sq mi (15,079 sq km), S Italy, a peninsula projecting ...Yorktown campaign
(Encyclopedia)Yorktown campaign, 1781, the closing military operations of the American Revolution. After his unsuccessful Carolina campaign General Cornwallis moved into Virginia to join British forces there. His l...disease
(Encyclopedia)disease, impairment of the normal state or functioning of the body as a whole or of any of its parts. Some diseases are acute, producing severe symptoms that terminate after a short time, e.g., pneumo...Latium
(Encyclopedia)Latium lāˈshēəm [key], Ital. Lazio, region (1990 pop. 5,170,672), 6,642 sq mi (17,203 sq km), central Italy, extending from the Apennines westward to the Tyrrhenian Sea. Rome is the capital of the...blood
(Encyclopedia)blood, fluid pumped by the heart that circulates throughout the body via the arteries, veins, and capillaries (see circulatory system; heart). An adult male of average size normally has about 6 quarts...sickle cell disease
(Encyclopedia)sickle cell disease or sickle cell anemia, inherited disorder of the blood in which the oxygen-carrying hemoglobin pigment in erythrocytes (red blood cells) is abnormal. This “hemoglobin-S” crysta...Tennessee Valley Authority
(Encyclopedia)Tennessee Valley Authority (TVA), independent U.S. government corporate agency, created in 1933 by act of Congress; it is responsible for the integrated development of the Tennessee River basin. The h...drugs
(Encyclopedia)drugs, substances used in medicine either externally or internally for curing, alleviating, or preventing a disease or deficiency. At the turn of the century only a few medically effective substances ...Maya, indigenous people of Mexico and Central America
(Encyclopedia)Maya mīˈə, Span. mäˈyä [key], indigenous people of S Mexico and Central America, occupying an area comprising the Yucatán peninsula and much of the present state of Chiapas in Mexico, Guatemala...medicine
(Encyclopedia)medicine, the science and art of treating and preventing disease. Modern medicine, characterized by growing specialization and a complex diagnostic and therapeutic technology, faces problems in the...Browse by Subject
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