ethinylestradiol
nounUS /ɪˌθaɪ.nl̩ˌɛ.stɹəˈdaɪˌɔl/
Etymology From ethinyl + estradiol.
1
Medicine, Pharmacology, Sciences A derivative of 17β-estradiol, the major endogenous estrogen in humans, used in oral contraceptives.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.