Cameo
WordNet
noun
(1) Engraving or carving in low relief on a stone (as in a brooch or ring)
WiktionaryText
Noun
- A piece of jewelry, etc., carved in relief.
- A single very brief appearance by a prominent actor or actress (or other notable) in a movie or song.
- Famous comic book writer Stan Lee had a cameo in the Spider-Man movie. He was on screen for perhaps ten seconds, but aficionados distinctly remember him.