norethindrone

N1O1R1E1T1H4I1N1D2R1O1N1E1
US/nɔɹˈɛθ.ɪnˌdɹoʊn/

A form of norethisterone — A synthetic steroid hormone, 19-nor-17α-ethynyltestosterone (C₂₀H₂₆O₂), which has actions similar to those of progesterone and is used chiefly for contraception.

Similar
norethindrone acetatenorethandroloneNorlutin
UncommonScrabble 17
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Meanings

nounnorethindrone (uncountable)
  1. USuncountablemedicineUS form of norethisterone.

Synonyms & antonyms

nouna synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis

Similar
norethindrone acetatenorethandroloneNorlutin
Broader
progestinprogestogen
Also see
norethandrolone

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From nor- + ethyn(yl) + (hy)dr(oxy) + -one.

Full word history & related roots →
Cite this entry
APA

norethindrone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/norethindrone

MLA

“norethindrone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/norethindrone. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “norethindrone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/norethindrone.

Source: norethindrone on Wiktionary, CC BY-SA 4.0.