# Río Negro

> English word · Proper noun

## Definitions
1. A province in central Argentina. Capital: Viedma.
2. A river in Patagonia, Argentina.
3. A river in Uruguay, which joins the Uruguay River.
4. A department in north-western Uruguay.
5. A former department of Chile.

## Etymology
Borrowed from Spanish Río Negro (literally “black river”).

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rio-negro