methotrexate

 
Pronunciation: /ˌmɛθəˈtrɛkseɪt, ˌmiːθə-/

noun

[mass noun] Medicine
  • a synthetic compound that interferes with cell growth and is used to treat leukaemia and other forms of cancer.
    • Chemical formula: C20H22N8O5

Origin:

1950s: from meth- (denoting a substance containing methyl groups) + elements of unknown origin