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theodolite

(Encyclopedia)theodolite thēŏdˈəlītˌ [key], calibrated optical instrument used to determine relative position in surveying, navigation, and meteorology. It is similar in construction to a surveyor's transit, ...

radiation weapon

(Encyclopedia)radiation weapon or radiological weapon, a bomb or warhead that uses conventional chemical explosives to disperse radioactive material, sometimes called a “dirty bomb.” Designed to produce radiati...

Nemi, Lake

(Encyclopedia)Nemi, Lake nāˈmē [key], Latin Nemorensis lacus, small, picturesque crater lake, c.1 mi (1.6 km) long, in the Alban Hills, central Italy, SE of Rome. The sacred wood and the ruins of the celebrated ...

Carte, Richard D'Oyly

(Encyclopedia)Carte, Richard D'Oyly doiˈlē kärt [key], 1844–1901, English impresario. His choice of presentations did much to raise the level of English musical theater. In 1875 he produced Trial by Jury, the ...

Catskill Mountains

(Encyclopedia)Catskill Mountains, dissected plateau of the Appalachian Mt. system, SE N.Y., W of the Hudson River. This glaciated region, wooded and rolling, with deep gorges and many waterfalls, is drained by the ...

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...

Taché, Sir Étienne Paschal

(Encyclopedia)Taché, Sir Étienne Paschal ātyĕnˈ päskälˈ täshāˈ [key], 1795–1865, Canadian statesman, b. Quebec prov. He fought with the British in the War of 1812 and then became a doctor. He entered (...

Zeami Motokiyo

(Encyclopedia)Zeami Motokiyo zāˈäˈmē mōˈtōˈkēˈyō [key] or Kanze Motokiyo, c.1363–c.1443, Japanese actor, playwright, and drama theorist. Son of the itinerant actor Kanami, at the age of eleven Zeami a...

Abbottabad

(Encyclopedia)Abbottabad ăbˈətäbäd [key], city (2020 pop. 1,332,912), NE Pakistan. It is a popular health resort c.4,000 ft (1,220 m) above sea level in the Himalaya region. It is...

Brunschvicg, Léon

(Encyclopedia)Brunschvicg, Léon lāôNˈ brünˈshvēk [key], 1869–1944, French philosopher, b. Paris. From 1909 until his death he taught at the Sorbonne. Brunschvicg's philosophy, which has had considerable in...