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

 

holograph

 noun
noun
BrE BrE//ˈhɒləɡrɑːf//
 
; NAmE NAmE//ˈhɑːləɡræf//
 
, NAmE//ˈhoʊləɡræf//
 
(specialist)
 
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a piece of writing that has been written by hand by its author Word Origin early 17th cent.: from French holographe, or via late Latin from Greek holographos, from holos ‘whole’ + -graphos ‘written, writing’.
See the Oxford Advanced American Dictionary entry: holograph