The region of Brazil composed of the states of Alagoas, Bahia, Ceará, Maranhão, Paraíba, Pernambuco, Piauí, Rio Grande do Norte and Sergipe.

The region of Brazil composed of the states of Espírito Santo, Minas Gerais, Rio de Janeiro and São Paulo.

The region of Brazil comprising the states of Acre, Amapá, Amazonas, Pará, Rondônia, Roraima and Tocantins.

plural of administrative region

A type of region in some countries. / Any of the 31 populated places in Federal District (Distrito Federal), Brazil, which are officially designated as administrative regions.

plural of rejection region

(statistics) A range of test values for which the null hypothesis is rejected.

plural of pubic region

plural of statistical region

A region of the Czech Republic. Capital: Olomouc