单词 | photo-galvanography |
释义 | photo-galvanography/ˌfəʊtə(ʊ)ɡalvəˈnɒɡrəfi/Now historical noun A process for obtaining a relief printing plate from a photograph, in which a relief negative of the photograph is made in sensitized gelatin and a gutta-percha positive taken from this, which is then electroplated. OriginMid 19th century. From photo- + galvanography. Compare slightly earlier photo-galvanographic, and slightly later photogalvanic. |
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