rio de la plata

noun

1. Plata, Río de la.

noun

1. Rí·o de la [ree-aw th e lah] /ˈri ɔ ðɛ lɑ/, an estuary on the SE coast of South America between Argentina and Uruguay, formed by the Uruguay and Paraná rivers, about 185 miles (290 km) long.

noun

1. See Plata

noun

1. Río de la Plata (ˈrio de la) an estuary on the SE coast of South America, between Argentina and Uruguay, formed by the Uruguay and Paraná Rivers. Length: 275 km (171 miles). Width: (at its mouth) 225 km (140 miles)Also known as: La Plata English name: River Plate