English

Definition of camera obscura noun from the Oxford Advanced Learner's Dictionary

 

camera obscura

 noun
noun
BrE BrE//ˌkæmərə əbˈskjʊərə//
 
; NAmE NAmE//ˌkæmərə əbˈskjʊrə//
 
 
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an early form of camera consisting of a dark box with a tiny hole or lens in the front and a small screen inside, on which the image appears Word Origin early 18th cent.: from Latin, ‘dark chamber’.
See the Oxford Advanced American Dictionary entry: camera obscura