Rio Negro

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Río Negro

(ˈriːəʊ ˈneɪɡrəʊ; ˈnɛɡ-; Spanish ˈrio ˈneɣro)
(Placename) See Negro2


(ˈni groʊ)

n., pl. -groes,
adj. Older Use: Sometimes Offensive. n.
1. a member of any of the indigenous peoples of sub-Saharan Africa, or one of their descendants.
2. of or designating Negroes.
[1545–55; < Sp and Portuguese negro black < Latin nigrum, masculine acc. of niger black]
usage: See black.


(ˈneɪ groʊ; Sp. ˈnɛ grɔ)
; Port. ne′gro͝o),
1. a river in NW South America, flowing SE from Colombia into the Amazon. 1400 mi. (2255 km) long.
2. a river in S Argentina, flowing E from the Andes to the Atlantic. 700 mi. (1125 km) long.
3. a river in SE South America, flowing SW from Brazil into the Uruguay River. ab. 500 mi. (800 km) long.
Portuguese, Rio Negro. Spanish, Río Negro.
References in periodicals archive ?
The entire network will be made up of five data highways: Upper Negro river, Upper Solimoes, Madeira, Purus and Jurua.
But in October 2015, water levels in the Negro River -- near Manaus, the capital of Brazil's state of Amazonas -- decreased so much that boats were left stranded.
Due to pressure from Southeast Asia, a region where the ornamental fish market has grown, the activity of exporting tropical fish, which originated from the Negro River basin, is now at risk and may completely disappear.
Some of them were Indians from the Catholic missions on the Negro River.
A local English speaking guide takes you down the Negro River to explore the area by boat as you travel deeper into the forest to the home of the local Amazonian residents, Cablocos where you spend the evening having dinner with them.
The satellite image shows the city of Manaus and the junction of the dark waters of the Negro River, coming from the northwest, and the muddy waters of the Solimoes River, coming from the southwest, to form the Amazon River, flowing eastward.
The pink mammal usually hides deep in the South American country's Rio Negro river.
One on the Negro River shut down last year after more than twenty years in business.
Is the Negro River Basin (Amazon) impacted by naturally occurring mercury?
violaceum is abundant in the water and on the borders of the Negro River in the Amazon basin (12); however, this is >1,000 kilometers from the region where the cases occurred.
Bott registered in 1969 a juvenile male from Cuieiras River, affluent of Negro River, joining it 60 km NW of Manaus of the Amazonas State.