norethisterone
A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone, which has actions similar…A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
UK/nɔː.ɹɛˈθɪ.stə.ɹəʊn/US/ˌnɔɹ.əˈθɪ.stəˌɹoʊn/
Meaning
1 senses(uncountable)A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.
Origin
From nor- + ethisterone.From nor- + ethisterone.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.