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Río Muni

American  
[ree-aw moo-nee] / ˈri ɔ ˈmu ni /

noun

  1. 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).

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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.