Norethindrone
//nɔɹˈɛθ.ɪnˌdɹoʊn// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 US form of norethisterone. US, alt-of, uncountable
- 2 a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis wordnet
Etymology
From nor- + ethyn(yl) + (hy)dr(oxy) + -one.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.