<p><strong>Noun</strong></p><ul><li>a rare variety of beryl that is colored green by chromium and valued as a gem.</li><li>emerald green.</li><li>(in Britain) a 6½-point type of a size between nonpareil and minion.</li><li>any of numerous small bright green hummingbirds of the genus Chlorostilbon.</li></ul><p><strong>Adjective</strong></p><ul><li>having a clear, deep-green color.</li></ul>