Definition of amethopterin in English:

amethopterin

(also A-methopterin, a-methopterin)

Pronunciation /ˌamɪˈθɒptərɪn/ /ˌeɪmɪˈθɒptərɪn/

noun

rare Pharmacology
  • The antineoplastic and immunosuppressive drug methotrexate.

Origin

1940s; earliest use found in The Lancet. From a- (in amino-) + meth- + -o- + pterin.