norethisterone
UK/nɔː.ɹɛˈθɪ.stə.ɹəʊn/US/ˌnɔɹ.əˈθɪ.stəˌɹoʊn/
norethisterone noun: a synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.

Noun
norethisterone (uncountable)
- A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
Forms of norethisterone
| alternative US | norethindrone |
|---|
Origin of norethisterone
From nor- + ethisterone.
Questions about norethisterone
- What does norethisterone mean?
- Norethisterone means a synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
- What part of speech is norethisterone?
- Norethisterone is a noun.
- How do you pronounce norethisterone?
- Norethisterone is pronounced /nɔː.ɹɛˈθɪ.stə.ɹəʊn/ (UK).
Words near norethisterone in the dictionary
Source and license
Adapted from Wiktionary: norethisterone (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “norethisterone.” Word.ws, https://word.ws/norethisterone. Based on Wiktionary, CC BY-SA 4.0.
