acrography 1. The art of making blocks in relief, as a substitute for wood-engraving. 2. A process of making chalk tracery in relief on metal or stone, to obtain from it an electrotype or stereotype. Found on http://www.wordinfo.info/words/index/info/view_unit/2724/
the art of making wood blocks in relief
acrography 1. The art of making blocks in relief, as a substitute for wood-engraving. 2. A process of making chalk tracery in relief on metal or stone, to obtain from it an electrotype or stereotype.