<p><strong>Noun:</strong></p><ul><li>any of several highly venomous, Old World elapid snakes of the genera Naja and Ophiophagus, characterized by the ability to flatten the neck into a hoodlike form when disturbed.</li><li>any of several similar, related African snakes, as the ringhals.</li><li>leather made from the skin of a cobra.</li><li>a single-engine, two-seat U.S. Army attack helicopter armed with missiles, rockets, and a 20 mm cannon and in service since 1977.</li></ul>