etonogestrel

noun

et·o·no·ges·trel | \ ˌet-ə-nō-ˈjes-trəl

How to pronounce etonogestrel (audio)

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Medical Definition of etonogestrel

: a synthetic progestin C₂₂H₂₈O₂ used alone or in combination with an estrogen to prevent pregnancy

Note: Etonogestrel is marketed under the trademark Nexplanon and when combined with ethinyl estradiol under the trademark NuvaRing.