Definition of norethindrone in English:

norethindrone

noun

US
Pharmacology
  • = norethisterone.

Origin

1960s; earliest use found in Population Index. From nor- + ethine, variant of ethyne + -dr- (in hydroxy-) + -one.

Pronunciation

norethindrone

/nɔːrɛˈθɪndrəʊn/