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Sudan

(Encyclopedia)CE5 Sudan so͞odănˈ [key], officially Republic of the Sudan, republic (2015 est. pop. 38,648,000), 718,723 sq mi (1,861,484 sq km), NE Africa. It borders on Egypt in the north, on the Red Sea in ...

Niger, river, Africa

(Encyclopedia)Niger nīˈjər [key], great river of W Africa, c.2,600 mi (4,180 km) long, rising on the Fouta Djallon plateau, SW Guinea, and flowing NE through Guinea and into Mali. In central Mali the Niger forms...

Sahara

(Encyclopedia)Sahara səhârˈə [key] [Arab.,=desert], world's largest desert, c.3,500,000 sq mi (9,065,000 sq km), N Africa; the western part of a great arid zone that continues into SW Asia. Extending more than ...

Darfur

(Encyclopedia)Darfur därˈfo͞or [key], region and former sultanate, W Sudan. The region is mountainous, dominated by the central massif of Jebel Marra, which rises to 10,130 ft (3,088 m). Much of the terrain is d...

Africa

(Encyclopedia)CE5 Africa ăfˈrĭkə [key], second largest continent (2015 est. pop. 1,194,370,000), c.11,677,240 sq mi (30,244,050 sq km) including adjacent islands. Broad to the north (c.4,600 mi/7,400 km wide...

Arabic languages

(Encyclopedia)Arabic languages, members of the West Semitic group of the Semitic subdivision of the Afroasiatic family of languages (see Afroasiatic languages). The Arabic languages comprise North Arabic (or simply...

Birmingham, city, England

(Encyclopedia)Birmingham bûrˈmĭngəm [key], city and metropolitan borough (2021 city pop. 2,606,374; met...

mine, in warfare

(Encyclopedia)mine, in warfare, term formerly applied to a system of tunnels dug under an army fortification and ending in a chamber where either explosives were placed to be detonated at a chosen moment or the sup...

worm

(Encyclopedia)worm, common name for various unrelated invertebrate animals with soft, often long and slender bodies. Members of the phylum Platyhelminthes, or the flatworms, are the most primitive; they are general...

Australopithecus

(Encyclopedia)Australopithecus ôstrāˌlōpĭthˈəkəs, –pəthēˈkəs [key], an extinct hominin genus found in Africa between about 4 and 1 million years ago. At least seven species of australopithecines are n...

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