| a guarded compound for the detention or imprisonment of aliens, members of ethnic minorities, political opponents, etc., esp. any of the camps established by the Nazis prior to and during World War II for the confinement and persecution of prisoners. |
A place for assembling and confining political prisoners and enemies of a nation. Concentration camps are particularly associated with the rule of the Nazis in Germany, who used them to confine millions of Jews as a group to be purged from the German nation. Communists, Gypsies, homosexuals, and other persons considered undesirable according to Nazi principles, or who opposed the government, were also placed in concentration camps and eventually executed in large groups. (See Holocaust.)