Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A progestational hormone, C20H26O2, similar in effect to progesterone, used especially in oral contraceptives.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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(Chemically, norethindrone is 17a-ethinyl-19-nortestosterone; its generic name in Europe is norethisterone).
Did You Know? Birth control pills come from Mexican yams 2008
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(Chemically, norethindrone is 17a-ethinyl-19-nortestosterone; its generic name in Europe is norethisterone).
Did You Know? Birth control pills come from Mexican yams 2008
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Some women find that taking an oral contraceptive that contains the older progestin called norethindrone at a dose of 1.5 nanograms helps restore the proper balance for libido.
Great Sex for Moms M.D. Valerie Davis Raskin 2002
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Some women find that taking an oral contraceptive that contains the older progestin called norethindrone at a dose of 1.5 nanograms helps restore the proper balance for libido.
Great Sex for Moms M.D. Valerie Davis Raskin 2002
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Some women find that taking an oral contraceptive that contains the older progestin called norethindrone at a dose of 1.5 nanograms helps restore the proper balance for libido.
Great Sex for Moms M.D. Valerie Davis Raskin 2002
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She also tries different hormones, such as norethindrone, a type of progesterone more commonly used in Europe.
The Seattle Times 2009
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Even today, norethindrone, though not norethynodrel, is still used by millions of women as an oral contraceptive.
Heidi Kingstone: What Happened to the Father of the Pill? Whitewashed Out of History... 2010
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One and one-half years after the first publication by the Syntex group, chemists at G.D. Searle -- a company for which Pincus consulted, synthesized a close relative, norethynodrel, which, as shown by Pincus -- is largely converted in the stomach into norethindrone.
Heidi Kingstone: What Happened to the Father of the Pill? Whitewashed Out of History... 2010
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Mexican pharmaceutical company, Syntex, S.A., first synthesized an orally active progestational steroid, named norethindrone, which does not exist in nature and that they supplied Pincus with this steroid for further biological work.
Heidi Kingstone: What Happened to the Father of the Pill? Whitewashed Out of History... 2010
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None of Pincus's and Rock's work would have been possible without the initial chemical breakthrough in Mexico on deliberately synthesizing an orally effective progestin -- an achievement which was recognized by the National Medal of Science in 1973 in the White House and in 1978 by inclusion of Syntex's norethindrone as the first ever drug in the
Heidi Kingstone: What Happened to the Father of the Pill? Whitewashed Out of History... 2010
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