• (a.) Pertaining to the art of engraving by the action of light.
Pho`to·glyph'ic adjective [ Photo- + Greek ... to engrave.] Pertaining to the art of engraving by the action of light. [ Written also photoglyptic .] Photoglyphic engraving , 
photoglyph, photoglyphic An engraved plate; such as that which can be printed from or produced by the action of light.