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Lon Nol

(Encyclopedia)Lon Nol lŏn nōl [key], 1913–85, Cambodian general and political leader. He became defense minister and army chief of staff in 1955 in Norodom Sihanouk's government. He served as premier (1966–67...

Flor, Roger de

(Encyclopedia)Flor, Roger de, d. c.1306, German commander of Spanish mercenaries, b. Italy. He entered the order of the Knights Templars and fought (1291) at Acre (see Akko, but he was obliged to leave the order wh...

Duchesne, Saint Rose Philippine

(Encyclopedia)Duchesne, Saint Rose Philippine düshĕnˈ [key], 1769–1852, French educator in the United States, a Roman Catholic nun, b. Grenoble, France. She entered the order of the Visitation, but was forced...

Fechner, Gustav Theodor

(Encyclopedia)Fechner, Gustav Theodor go͝osˈtäf tāˈōdōr fĕkhˈnər [key], 1801–87, German philosopher and physicist, founder of psychophysics, educated at Dresden and Leipzig. He became professor of physi...

Prado, Mariano Ignacio

(Encyclopedia)Prado, Mariano Ignacio märyäˈnō ēgnäˈsyō präˈᵺō [key], 1826–1901, president of Peru (1865–67, 1878–79). He aided Ramón Castilla in the revolution of 1854. Indignant at the treaty t...

prism

(Encyclopedia)prism, in optics, a piece of translucent glass or crystal used to form a spectrum of light separated according to colors. Its cross section is usually triangular. The light becomes separated because d...

whale

(Encyclopedia)whale, aquatic mammal of the order Cetacea, found in all oceans of the world. Members of this order vary greatly in size and include the largest animals that have ever lived. Cetaceans never leave the...

hernia

(Encyclopedia)hernia, protrusion of an internal organ or part of an organ through the wall of a body cavity. The hernia is enclosed by a sac formed by the lining of the cavity. It results from a weakness or rupture...

amputation

(Encyclopedia)amputation ămˌpyətāˈshən [key], removal of all or part of a limb or other body part. Although amputation has been practiced for centuries, the development of sophisticated techniques for treatme...

internment

(Encyclopedia)internment, in international law, detention of the nationals or property of an enemy or a belligerent. A belligerent will intern enemy merchant ships or take them as prize, and a neutral should intern...