/ech"ing/ , n.
1. the act or process of making designs or pictures on a metal plate, glass, etc., by the corrosive action of an acid instead of by a burin.
2. an impression, as on paper, taken from an etched plate.
3. the design so produced.
4. a metal plate bearing such a design.
[ 1625-35; ETCH + -ING 1 ]