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Delano, Amasa

(Encyclopedia)Delano, Amasa ămˈəsə dĕlˈənō [key], 1763–1823, American sea captain, b. Duxbury, Mass. At 15, he served as a soldier in the American Revolution and later as a privateersman. His experiences ...

impetigo

(Encyclopedia)impetigo ĭmpətīˈgō [key], contagious skin infection affecting mainly infants and children. The causative organisms are either hemolytic streptococci or staphylococci. The eruption consists of sma...

Atlas, in astronomy

(Encyclopedia)Atlas, in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XV (or S15), Atlas is a small, irregularly shaped (nonspherical) body measuring about 25 mi (40 km) ...

Marshall, James Wilson

(Encyclopedia)Marshall, James Wilson, 1810–85, American pioneer, discoverer of gold in California, b. Hunterdon co., N.J. Migrating to California for his health, he arrived at Sutter's Fort (site of present Sacra...

agranulocytosis

(Encyclopedia)agranulocytosis əgrănˌyəlōsītōˈsis [key], disease in which the production of granulated white blood cells by the bone marrow is impaired. Although the disease may occur spontaneously it is usu...

Villeda Morales, Ramón

(Encyclopedia)Villeda Morales, Ramón rämōnˈ vēyāˈᵺä mōräˈlās [key], 1909–71, president of Honduras (1957–63). A physician, he was prominent in the Liberal party and served as Honduran ambassador t...

VX

(Encyclopedia)VX vēˈĕks [key], nerve gas several times more toxic than sarin but less volatile. It kills within minutes if inhaled or deposited on the skin; protection from VX would require both protective suits...

Walker, George

(Encyclopedia)Walker, George, 1618–90, Irish Anglican clergyman and commander. As joint governor of Londonderry (now Derry) during the siege (1689) of that city by the army of the deposed James II, Walker roused ...

tularemia

(Encyclopedia)tularemia to͞olərēˈmēə [key] or rabbit fever, acute, infectious disease caused by Francisella tularensis (Pasteurella tularensis). The greatest incidence is among people who handle infected wild...

Saturn, in Roman religion and mythology

(Encyclopedia)Saturn, in Roman religion and mythology, god of harvests, later identified with the Greek Kronos. Little is known of the origins of his cult. His reign was regarded as the Golden Age. He was the husba...