Source : Webster's Revised Unabridged Dictionary (1913)

Photoglyphic \Pho`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.