An acid or corrosive chemical used in etching; a mordant.
- ‘It can also be cured at relatively low temperatures, is chemically compatible with organic semiconductors and can be used with the microprinting etchants.’
- ‘The following table lists the most commonly used etchants.’
- ‘Etchants are commonly employed in the manufacture of resistor boards where films of gold, nickel, or chromium are to be etched.’
We take a look at several popular, though confusing, punctuation marks.