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radish

(Encyclopedia)radish, herbaceous plant (Raphanus sativus) belonging to the family Cruciferae (or Brassicaceae; mustard family), with an edible, pungent root sliced in salads or used as a relish. It is thought to be...

O'Connor, Basil

(Encyclopedia)O'Connor, Basil (Daniel Basil O'Connor), 1892–1972, American lawyer and philanthropic official, b. Taunton, Mass., grad. Harvard Law School, 1915. He practiced law in New York and Boston, entering i...

O'Donnell, Hugh Roe

(Encyclopedia)O'Donnell, Hugh Roe, 1571?–1602, Irish chieftain and ruler of Tyrconnel (modern Donegal), known as Red Hugh. His father tended to favor the English, who left him free to continue the traditional O'D...

Ouachita

(Encyclopedia)Ouachita wôˈshĭtôˌ [key], river, c.600 mi (970 km) long, rising in the Ouachita Mts., W Ark. It flows east, southeast, and south through a cotton-producing region of S Arkansas and NE Louisiana a...

Natchitoches

(Encyclopedia)Natchitoches nakˈətäsh [key], city (1990 pop. 16,609), seat of Natchitoches parish, NW La.; inc. 1819. Its industry is centered on the production, processing, and shipping of lumber and farm produc...

Rocky Mountain spotted fever

(Encyclopedia)Rocky Mountain spotted fever, infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species that attach the...

Rinehart, Mary Roberts

(Encyclopedia)Rinehart, Mary Roberts rīnˈhärt [key], 1876–1958, American novelist, b. Pittsburgh. A graduate nurse, she married Dr. Stanley M. Rinehart in 1896. The first of her many mystery stories, The Circu...

Thorfinn Karlsefni

(Encyclopedia)Thorfinn Karlsefni thôrˈfĭn kärlˈsĕvnē [key], fl. 1002–15, Norse leader of an attempt to colonize North America. He appeared in Greenland in 1002 and married Gudrid, widow of one of the sons ...

Hertzsprung-Russell diagram

(Encyclopedia) CE5 The Hertzsprung-Russell diagram shows the relation between the luminosity and surface temperature (which is related to spectral class, or color) of the stars in the Milky Way. Most stars fall a...

mulberry

(Encyclopedia) CE5 Red mulberry, Morus rubra mulberry, common name for the Moraceae, a family of deciduous or evergreen trees and shrubs, often climbing, mostly of pantropical distribution, and characterized by ...
 

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