Definition of norethisterone in English:

norethisterone

noun

Pharmacology
  • A synthetic steroid hormone, C₂₀H₂₆O₂, which has actions similar to those of progesterone and is used chiefly for contraception.

Origin

1950s; earliest use found in Proceedings of the Society for Experimental Biology and Medicine. From nor- + ethisterone.

Pronunciation

norethisterone

/nɔːrɛˈθɪstərəʊn/