Pho·to·glyp·tic a. Same as Photoglyphic.
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Pho·to·glyph·ic a. 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.
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