PhotoglyphicPho`to*glyph"ic\, a. [Photo- + Gr. ? to engrave.] 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.