metastasis

https://doi.org/10.1351/goldbook.15879
  1. Movement of bacteria or body cells, especially cancer cells, from one part of the body to another, resulting in change in location of a disease or of its symptoms from one part of the body to another.
  2. Growth of pathogenic microorganisms or of abnormal cells distant from the site of their origin in the body.
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1260 [Terms] [Paper]