norethindrone

noun

nor·​eth·​in·​drone ˌnȯr-ˈe-thən-ˌdrōn How to pronounce norethindrone (audio)
: a synthetic progestational hormone C20H26O2 used in birth control pills often in the form of its acetate

Examples of norethindrone in a Sentence

Recent Examples on the Web The first generation progestin includes norethindrone and norethisterone; the second generation, levonorgestrel and norgestrel; the third generation, desogestrel, gestodene, and norgestodene; and the fourth generation progestin, drospirenone and dienogest. Joshua Cohen, Forbes, 4 May 2023 Have had a serious allergic reaction to elagolix, estradiol, norethindrone acetate, or any of the ingredients in ORIAHNN. Noel Mumford, Essence, 27 May 2021 A few months later, the team synthesized a hormone known as norethindrone, which was originally intended to help pregnant women avoid miscarriages. Steve Marble, latimes.com, 27 June 2019

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'norethindrone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

nor- + ethinyl + hydr- + -one (as in progesterone)

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of norethindrone was in 1958

Dictionary Entries Near norethindrone

Cite this Entry

“Norethindrone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/norethindrone. Accessed 18 Jun. 2024.

Medical Definition

norethindrone

noun
nor·​eth·​in·​drone nȯr-ˈeth-ən-ˌdrōn, ˌnȯr-eth-ˈin- How to pronounce norethindrone (audio)
: a synthetic progestational hormone C20H26O2 used in birth control pills often in the form of its acetate C22H28O3 see loestrin, minastrin, ortho-novum

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