metastasize

US /metˈæs.tə.saɪz/
UK /metˈæs.tə.saɪz/
"metastasize" picture
1.

to spread to other sites in the body by metastasis

:
The cancer cells began to metastasize to the lungs.
Doctors are concerned the tumor might metastasize quickly.
2.

to spread or extend to other areas or aspects

:
The problem began in one department and quickly metastasized throughout the entire company.
His bad habits started to metastasize into other areas of his life.