"metastasises" in the noun sense
1. metastasis
the spreading of a disease (especially cancer) to another part of the body
"metastasises" in the verb sense
1. metastasize, metastasise
spread throughout the body
"the cancer had metastasized and the patient could not be saved"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License