a country in northeast South America on the Atlantic Ocean, between Venezuela and Surinam. Population: 697,181 (2001). Capital: Georgetown. The country used to belong to the UK and was called British Guiana. It is the only English-speaking country in South America. officially Co-operative Republic of Guyana formerly (until 1966) British Guiana Country, northeastern South America
a republic in northeastern South America; achieved independence from England in 1966