aquatint

noun

1. a process imitating the broad flat tints of ink or wash drawings by etching a microscopic crackle on the copperplate intended for printing.
2. an etching made by this process.

verb (used with or without object)

3. to etch in aquatint.

noun

1. a technique of etching copper with acid to produce an effect resembling the flat tones of wash or watercolour. The tone or tint is obtained by acid (aqua) biting through the pores of a ground that only partially protects the copper
2. an etching made in this way

verb

3. (tr) to etch (a block, etc) in aquatint