norgestrel

English

Chemical structure of norgestrel

Etymology

From nor- +‎ -gestr- (“estrogen”) +‎ e(thy)l.

Pronunciation

• (Received Pronunciation) IPA^(key): /nɔːˈd͡ʒɛ.stɹl̩/
• (General American) IPA^(key): /nɔɹˈd͡ʒɛ.stɹəl/

Noun

norgestrel (uncountable)

1. (pharmacology) A synthetic progestogen C₂₁H₂₈O₂ having two optically active forms of which the biologically active levorotatory form is used in birth control pills.

Derived terms

• levonorgestrel
• dexnorgestrel

References

• “norgestrel”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “norgestrel”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.