"Formerly, a street or quarter of a city set apart as a legally enforced
residential area for Jews. Forced segregation of Jews spread throughout
Europe in the 14th – 15th centuries."
"Ghettos were abolished in western Europe in the 19th century; those revived by the
Nazi Party (
see Warsaw Ghetto Uprising) were overcrowded holding places preliminary to extermination."
http://www.answers.com/topic/ghetto