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Santa Cruz de la Sierra

(Encyclopedia)Santa Cruz de la Sierra ᵺā lä sēĕrˈä [key], city (1992 pop. 697,278), capital of Santa Cruz dept., central Bolivia, on the Piray River. A trade and processing center for sugar, rice, cotton, f...

Roseville

(Encyclopedia)Roseville. 1 City (1990 pop. 44,685), Placer co., N central Calif., a suburb of Sacramento in the foothills of the Sierra; inc. 1909. Marked by rapid growth in the late 20th cent., Roseville is in an ...

agronomy

(Encyclopedia)agronomy əgrŏnˈəmē [key], branch of agriculture dealing with various physical and biological factors—including soil management, tillage, crop rotation, breeding, weed control, and climate—rel...

Piura

(Encyclopedia)Piura pyo͞oˈrä [key], city (1993 pop. 199,484), capital of Piura dept., NW Peru, in the irrigated Piura valley of the Peruvian coastal desert. It is the commercial center for the region's cotton, s...

Cletus, Saint

(Encyclopedia)Cletus or Anacletus, Saint klēˈtəs, ănəklēˈtəs [key], d. a.d. 88?, pope (a.d. 76?–a.d. 88?), martyr, a Roman; successor of St. Linus and predecessor of St. Clement I. Feast: Apr. 26. ...

Emilia-Romagna

(Encyclopedia)Emilia-Romagna āmēˈlyä-rōmäˈnyä [key], region, 8,542 sq mi (22,124 sq km), N central Italy, bordering on ...

Trachonitis

(Encyclopedia)Trachonitis trăkˌənīˈtĭs [key], region, ancient Palestine, NE of the Sea of Galilee and SE of Damascus. It formed part of the tetrarchy of Herod Philip and Herod Agrippa I. It is mentioned in th...

Veterans' Day

(Encyclopedia)Veterans' Day, holiday formerly observed in the United States as Armistice Day in commemoration of the signing of the Armistice ending World War I. Nov. 11 officially became Veterans' Day on May 24, 1...

Du Pont, Pierre Samuel

(Encyclopedia)Du Pont, Pierre Samuel, 1870–1954, American industrialist, b. Wilmington, Del., grad. Massachusetts Institute of Technology, 1890. Du Pont worked as a chemist with the family's company, helping to d...

Cherenkov radiation

(Encyclopedia)Cherenkov radiation or Cerenkov radiation [for P. A. Cherenkov], light emitted by a transparent medium when charged particles pass through it at a speed greater than the speed of light in the medium. ...