Definition of daguerreotype noun from the Oxford Advanced Learner's Dictionary

 

daguerreotype

 noun
(also daguerrotype)noun
BrE BrE//dəˈɡerətaɪp//
 
; NAmE NAmE//dəˈɡerətaɪp//
 
 
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a photograph taken using an early process that used a silver plate and mercury gas Word Origin mid 19th cent.: from French daguerréotype, named after L.-J.-M. Daguerre (1789-1851), the French physicist, painter and inventor of the first practical photographic process.
See the Oxford Advanced American Dictionary entry: daguerreotype