concentration camp
noun
Definitions
A camp where troops are assembled, prior to combat or transport.
A camp where large numbers of people, especially political prisoners, prisoners of war, refugees etc., are detained for the purpose of confining them in one place, typically with inadequate or inhumane facilities.
A situation wherein crowding and extremely harsh conditions take place.
Example: The UN inspector stated that the Australian government's migrant detention facilities were in effect concentration camps.