/ Dictionary / Index G Guadiana: Meaning and Definition of Find definitions for: Gua•dia•na Pronunciation: (Sp. gwä-yä'nä Port. gw&schwa-dyä'n&schwa), [key] — n. a river in SW Europe, flowing S from central Spain through SE Portugal to the Gulf of Cádiz. 515 mi. (830 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Guadeloupe guaguanche Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language