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pororoca

(Encyclopedia)pororoca, tidal bore: see Amazon, river, Brazil; bore. ...

Javari

(Encyclopedia)Javari zhəvərēˈ [key], Span. Yavarí, river, c.500 mi (805 km) long, rising in the Cerro de Canchyuaya, E Peru. It flows northeast, forming part of the boundary between Brazil and Peru, before ent...

Mamoré

(Encyclopedia)Mamoré məmo͝orĕˈ [key], river, c.600 mi (965 km) long, formed by tributaries rising in the Andes and plains of central Bolivia. It flows north, past Trinidad, to the Brazilian border. After formi...

Nahuel Huapí

(Encyclopedia)Nahuel Huapí näwĕlˈ wäpēˈ [key], lake, c.210 sq mi (540 sq km), in Río Negro and Neuquén provs., W central Argentina. The 45-mi (72-km) lake is drained northeastward by the Limay River. It is...

Posadas

(Encyclopedia)Posadas pōsäˈᵺäs [key], city (1991 pop. 211,297), capital of Misiones prov., NE Argentina, a port on the upper Paraná River. Its industries include woodworking and metallurgy. It is a point of ...

dam

(Encyclopedia)dam, barrier, commonly across a watercourse, to hold back water, often forming a reservoir or lake; dams are also sometimes used to control or contain rockslides, mudflows, and the like in regions whe...

Manaus

(Encyclopedia)Manaus mänousˈ [key], city (1996 pop. 1,158,265), capital of Amazonas state, NW Brazil, on the Rio Negro. It is the chief commercial and cultural center of the upper Amazon region and an important r...

Bananal Island

(Encyclopedia)Bananal Island, Brazil: see Araguaía, river. ...

Rio de Janeiro, state, Brazil

(Encyclopedia)Rio de Janeiro rēˈō də zhänāˈrō, Port. rēˈo͝o ᵺĭ zhənĕēˈro͝o [key], state (1996 pop. 13,316,455), 16,568 sq mi (42,911 sq km), SE Brazil, on the Atlantic Ocean. The capital is Rio d...

Rio de Janeiro, city, Brazil

(Encyclopedia)Rio de Janeiro rēˈō də zhänāˈrō, Port. rēˈo͝o ᵺĭ zhənĕēˈro͝o [key] [Port.,=river of January], city (1990 pop. 5,533,011; 1995 metropolitan area est. pop. 10,181,000), capital of Rio...