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pan·op·ti·con | \ pə-ˈnäp-ti-ˌkän 
, pa- \
, pa- \ plural panopticons
Definition of panopticon
1 : an optical instrument combining the telescope and microscope
2 : a circular prison built with cells arranged radially so that a guard at a central position can see all the prisoners
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Time Traveler for panopticon
The first known use of panopticon was in 1742
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