Columbia Encyclopedia

(Encyclopedia) sickle cell disease or sickle cell anemia, inherited disorder of the blood in which the oxygen-carrying hemoglobin pigment in erythrocytes (red blood cells) is abnormal. This “hemoglobin-S” crysta...

(Encyclopedia) wolf, carnivorous mammal of the genus Canis in the dog family. Once distributed over most of the Northern Hemisphere, wild wolves are now confined to the wilder parts of a reduced range. Three wolf sp...

(Encyclopedia) Mocha mōˈkə [key], town (1990 est. pop. 2,000), S Yemen, a port on the Red Sea. It was noted for the export of the coffee to which it gave its name but declined as a trading port in the late 19th c...

(Encyclopedia) Moorhead, city (1990 pop. 32,295), seat of Clay co., NW Minn., on the Red River; inc. 1881. A sister city of Fargo, N.Dak., it is a shipping and processing center for a livestock, dairy, and farm (chi...

(Encyclopedia) Drumheller drŭmˈhĕlˌər [key], city, SE Alta., Canada, on the Red Deer River. Once a coal mining ...

(Encyclopedia) Bossier City bōˈzhər [key], city (2020 pop. 62,701), Bossier parish, NW La., on the Red River, ...

(Encyclopedia) Jedburgh jĕdˈbərə [key], town (1991 pop. 4,053), Scottish Borders, SE Scotland, on the Jed River. The manufacture of rayon is the main industry. Jedburgh also has tannery, woolen, and corn mills a...

(Encyclopedia) Berenice or Berenike, city of ancient Egypt, on the Red Sea. Founded by Ptolemy II and named in his mother's honor, it commanded the trade with Arabia and India, flourishing from the 3d cent. b.c. to ...

(Encyclopedia) crayfish or crawfish, freshwater crustacean smaller than but structurally very similar to its marine relative the lobster, and found in ponds and streams in most parts of the world except Africa. Cray...

(Encyclopedia) Zhang Yimou, 1951–, Chinese film director. Sentenced to forced labor during the Cultural Revolution (1966–76) because his father had been an officer in Chiang Kai-shek's army, he then studied at t...