<p><strong>Adjective</strong></p><ul><li>of, relating to, or characteristic of Cornwall, England, its inhabitants, or the Cornish language.</li></ul><p><strong>Noun</strong></p><ul><li>the Celtic language of Cornwall, extinct since c1800.</li><li>one of an English breed of chickens raised chiefly for crossing with other breeds to produce roasters.</li></ul>