<p><strong>Noun</strong></p><ul><li>A technique of engraving upon a gem or other stone, as onyx, in such a way that an underlying stone of one color is exposed as a background for a low-relief design of another color.</li><li>A gem or other stone so engraved.</li><li>A literary sketch, small dramatic scene, or the like, that effectively presents or depicts its subject: His collection of poetry gives us cameos of contemporary life that we can all readily identify with.</li><li>Also called cameo role: a minor part played by a prominent performer or celebrity in a single scene of a motion picture, play, or television show.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object) To appear in a cameo role, as in a motion picture: She’s starred or cameoed in five films by the same director.</li></ul>