La⋅go⋅a dos /ləˈgɔə dʊs/Show Spelled Pronunciation[luh-gaw-uh doos]Show IPA, a lagoon on the Atlantic Coast in SE Brazil: Pôrto Alegre is on the lagoon. ab. 150 mi. (240 km) long and 30 mi. (48 km) wide.
Pa·tos (pāt'əs, pä'tŏŏs) A shallow tidal lagoon of southeast Brazil. Separated from the Atlantic Ocean by a wide sandbar, it is an important fishing ground.