Simple past tense and past participle of metastasize.(verb)
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Use "metastasized" in a sentence
"The word "metastasized" was the one in the report that first caught my eye, and ear."
"His reputation "metastasized" (his word) when he took on AIG four years before the insurance giant was universally acknowledged as the Death Star at the center of the financial collapse."
"It is tougher to get coverage if the cancer metastasized, meaning it spread to another part of the body, but a few carriers will still provide coverage if there's been no treatment in the past 10 years, he says."