|a concentration camp in which the conditions are so brutal that few prisoners survive, or one to which prisoners are sent for execution|
Nazi German concentration camp that specialized in the mass annihilation (Vernichtung) of unwanted persons in the Third Reich and conquered territories. The camps' victims were mostly Jews but also included Roma (Gypsies), Slavs, alleged mental defectives, and others. The extermination camps played a central role in the Holocaust.
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