photoglyphic

Pho`to*glyph"ic, a. Etym: [Photo- + Gr. Defn: Pertaining to the art of engraving by the action of light. [Written also photoglyptic.] Photoglyphic engraving, a process of etching on copper, steel, or zinc, by means of the action of light and certain chemicals, so that from the plate impressions may be taken. Sir D. Brewster.

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