<p><strong>Verb:</strong></p><ul><li>(used with object) to cause to be inactive; remove the effectiveness of.</li><li>to demobilize or disband (a military unit).</li><li>to render (a bomb, shell, or the like) inoperative, especially by disconnecting, removing, or otherwise interfering with the action of the fuze.</li><li>(Chemistry) to render (a chemical, enzyme, catalyst, etc.) inactive.</li></ul><p><strong>Verb:</strong></p><ul><li>(used without object) to lose radioactivity.</li></ul>