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quinestrol

[kwin-es-trawl, -trol]
noun Pharmacology.
  1. a synthetic estrogen, C25H32O2, used in oral contraceptives.
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Origin of quinestrol

First recorded in 1965–70; quin(ic acid) + estr(ogen) + -ol1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018