metastasize

This theory had considerable resonance on the right wing and helped metastasize the militia movement.

Investors’ minds inevitably flashed back to 2008, when the implosion of the U.S. mortgage-backed securities market quickly metastasized globally.

Sakaguchi said that he wanted to continue researching how to enhance immune responses in cancer and to potentially prevent cancer cells from spreading and metastasizing.

A bureaucratic error had metastasized into a kind of social sentence.

But as Republican gerrymanders threaten to metastasize uncontrollably across the national map, Democrats don’t seem to fully understand the math or the depth of their difficulties.