(redirected from Fetal diethylstilbestrol syndrome)
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 (dī-ĕth′əl-stĭl-bĕs′trôl′, -trōl′)
n. Abbr. DES
A nonsteroidal synthetic drug, C18H20O2, having estrogenic properties and used in the treatment of advanced prostate cancer. Before 1971 it was prescribed to prevent miscarriage and to treat menstrual disorders but was found to cause vaginal cancer and other reproductive abnormalities in the daughters of pregnant women so treated.


(daɪˌɛθɪlstɪlˈbɛstrɒl; -ˌiːθaɪl-) or


(Biochemistry) a synthetic hormone with oestrogenic properties, used to relieve menopausal symptoms. Formula: OHC6H4CH:CHC6H4OH. Also called: stilbestrol or stilboestrol


(daɪˌɛθ əl stɪlˈbɛs trɔl, -trɒl)

a synthetic estrogen, C18H20O2, found to be carcinogenic to offspring when used to support pregnancy and now restricted in use. Abbr.: DES
[1935–40; di-1 + ethyl + stilbestrol (stilb(ene) + estr(us) + -ol1)]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diethylstilbestrol - a potent estrogen used in medicine and in feed for livestock and poultry
estrogen, oestrogen - a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics

diethylstilbestrol (DES)

n dietilestilbestrol m (DES)