Learn English – Does a laser “etch” things, or does it “engrave” them

adjectivescollocationnuancepast-participlesword-choice

Which (if any) of these adjectives would you use for describing a surface that has been cut using a laser beam:

  • a laser-etched surface
  • a laser-engraved surface
  • a laser-(something else) surface
  • a something else surface

So far I have found out that etched is generally lighter and made with acid, while engrave refers to a deeper trace, usually done with some physical tool.

But in the context of lasers, I have seen both words used. Are they interchangeable, or is there some difference in nuance?

Best Answer

I think which one you would use also depends strongly on the context in which you are working.

If you are working on marketing material, for instance, I'd probably lean towards "laser-engraved." On the other hand, if you are writing a technical work, then I would comment that a search in Web of Science (note: subscription required), actually returns more than an order of magnitude more links for "laser etch*" (nearly 40,000) versus "laser engrav*" (about 3,000). So, for any sort of technical writing, laser-etched is actually preferred to laser-engraved.

A Google Scholar search is even more lopsided in favor of "laser etching":