photoengravings

1.【物】光刻;【印】照相凸版(制版术);照相感光制(凸)版

1.the process of making a printing plate by photographing an image onto a metal plate and then etching the image

2.a printing plate made by photographing an image onto a metal plate and then etching the image

3.a print made by photographing an image onto a metal plate and then etching the image