<p><strong>Verb</strong></p><ul><li>(Used without object)<ul><li>Metastasized, Metastasizing.</li><li>Pathology: (of malignant cells or disease-producing organisms) to spread to other parts of the body by way of the blood or lymphatic vessels or membranous surfaces.</li><li>To spread injuriously: Street gangs have metastasized in our city.</li><li>To transform, especially into a dangerous form: The KGB metastasized after the fall of the Soviet Union. Truth metastasized into lurid fantasy.</li></ul></li></ul>