<p><strong>verb</strong></p><ul><li><p>(used with object)</p><ul><li>To shed rays of light upon; illuminate.</li><li>To illumine intellectually or spiritually.</li><li>To brighten as if with light.</li><li>To radiate (light, illumination, etc.).</li><li>To heat with radiant energy.</li><li>To treat by exposure to radiation, as of ultraviolet light.</li><li>To expose to radiation.</li></ul></li><li><p>(used without object)</p><ul><li>To emit rays; shine.</li><li>To become radiant.</li></ul></li></ul><p><strong>adjective</strong></p><ul><li>Irradiated; bright.</li></ul>