<p><strong>Noun</strong></p><ul><li>A tough, highly flammable substance consisting essentially of nitrocellulose and camphor, once used in the manufacture of motion-picture and x-ray film.</li><li>Motion-picture film.</li></ul><p><strong>Adjective</strong></p><ul><li>Informal: Of or involving motion pictures.</li></ul><p><strong>End of Response</strong></p>