a. [ Photo- + Gr. gly`fein to engrave. ] Pertaining to the art of engraving by the action of light. [ Written also photoglyptic. ] [ 1913 Webster ]

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. [ 1913 Webster ]