metastasis
noun [uncountable, countable] (the development of tumours in different parts of the body resulting from cancer that has started in another part of the body; one of these tumours （瘤）转移 Word Originlate 16th cent. (as a rhetorical term, meaning ‘rapid transition from one point to another’): from Greek, literally ‘removal or change’, from methistanai ‘to change’.