noun
copperplate etching
Refers to the etching technique or the resulting etched copper plate used in printmaking.
腐食銅版の技法は、銅板に防食剤を塗ってから酸で腐食させる。
The copperplate etching technique involves applying a resist to the copper plate and then etching it with acid.
Standard kanji spelling for copperplate etching; 版 (printing plate) is the more precise character for the etching plate itself.
Variant using 板 (board/plate); may be encountered but 版 is more common for printing contexts.
エッチング is the broader loanword for etching in general, while 腐食銅版 specifically refers to copperplate etching as a technique or the plate itself.
Compound of 腐食 (corrosion, etching) and 銅版 (copper plate). The term directly describes the process of etching a copper plate.