an organization whose members claim that the Earth is flat, and refuse to believe in modern science. The society was established in America and has branches in Britain. Its members are called flat-earthers , and the expression is sometimes used to describe people who refuse to believe something that is clearly true.
FLAT EARTH SOCIETY
Meaning of FLAT EARTH SOCIETY in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005