Meaning of ER in English
a US television medical series that began in 1994. ER is the abbreviation for Emergency Room, and the programme is set in a Chicago teaching hospital. It is the most popular series in the US and by 2004 had won 21 Emmy awards, including one for ‘Outstanding Drama Series’ in 1996.
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005