Río Muni

[ ree-aw moo-nee ]
/ ˈri ɔ ˈmu ni /

noun

the mainland province of Equatorial Guinea on the Guinea coast: formerly the mainland portion of Spanish Guinea. 10,040 sq. mi. (26,003 sq. km).
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019