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Amazonas

American  
[am-uh-zoh-nuhs] / ˌæm əˈzoʊ nəs /

noun

  1. a state in NW Brazil. 601,769 sq. mi. (1,558,582 sq. km). Manáos.


Amazonas British  
/ ˌæməˈzəʊnəs /

noun

  1. a state of W Brazil, consisting of the central Amazon basin: vast areas of unexplored tropical rainforest. Capital: Manaus. Pop: 2 961 801 (2002). Area: 1 542 277 sq km (595 474 sq miles)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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Amazonas neighbors Mato Grosso state, Brazil’s largest producer of soybeans and a major fertilizer consumer—some 400 miles away through dense rainforest, but still closer than Russia.

From The Wall Street Journal • Nov. 5, 2025

Ibama's technical staff noted in February that drilling conditions were very challenging in the Foz de Amazonas basin, prone to intense storms and strong ocean currents.

From Barron's • Oct. 20, 2025

The impact of these fires and the drought on people’s lives in Amazonas is clear, but their message for everybody else is too.

From BBC • Oct. 3, 2024

In Manaus, the capital of Amazonas state, the first cases in the current outbreak were detected near recently deforested areas.

From Science Magazine • Jun. 4, 2024

On August 6, 1824, at four o'clock in the afternoon, the two armies met on the plain of Junín, near the lake of that name, the source of the Amazonas.

From Simon Bolivar, the Liberator by Sherwell, Guillermo A.