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norethynodrel
[ nawr-uh-thahy-nuh-druhl, naw-reth-uh-nuh-drel ]
noun
, Pharmacology.
- a progestin, C 2 0 H 2 6 O 2 , used in combination with an estrogen in some oral contraceptives.
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Word History and Origins
Origin of norethynodrel1
1955–60; nor- + ethyn(yl) , components of 2 versions of its chemical name + -odrel, of uncertain derivation
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Example Sentences
Both norethindrone and norethynodrel provided synthetic counterparts of progesterone that overcame that limitation.
From Washington Post
One of the steps in the syntheses for preparing norethynodrel resulted in the formation of the potent estrogen mestranol as a very minor byproduct.
From Washington Post
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