an impression made from an etched plate
"The museum's new exhibit focuses on restoring historic copperplate etchings to reveal the fine lines of 18th-century cityscapes."
an etched plate made with the use of acid
"The artist carefully applied acid to the copper plate, creating a detailed etching that captured every shadow in the landscape."
The art of producing an image from a metal plate into which an image or text has been etched with acid.
"The museum displayed a stunning etching that revealed fine details in the portrait's facial features through the delicate lines on the copper plate."
present participle of etch
"The artist carefully applied acid to the metal plate, watching as the image slowly began to take shape through the process of etching."