What is a gummy composition spread over the surface of a metal to be etched, to prevent the acid from eating except where an opening is made by the needle called?
ground — (Etching) A gummy composition spread over the surface of a metal to be etched, to prevent the acid from eating except where an opening is made by the needle. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00