pro·​ges·​tin | \ prō-ˈje-stən \

Definition of progestin

: progestogen especially : a synthetic progesterone (such as levonorgestrel)

Examples of progestin in a Sentence

Recent Examples on the Web

This is because the progestin in them may help hormone-receptive cancers develop. SELF, "Here’s Exactly How to Find the Best Birth Control Pill for You," 14 Sep. 2018 That's actually one of the upsides — besides pregnancy prevention — of progestin IUDs like Mirena. Caroline Picard, Good Housekeeping, "8 Reasons for a Late Period Besides Pregnancy, According to an OB/GYN," 30 Nov. 2018 On average, toward the end of our 30s our bodies start producing less of the hormones estrogen and progestin, according to the Mayo Clinic. Colleen Stinchcombe, Woman's Day, "How Long Does Menopause Last?," 6 Sep. 2018 The difference is that while hormonal IUDs emit progestin, ParaGard has copper wire coiled around it. Korin Miller, SELF, "13 Things You Absolutely Should Know Before Getting the Copper IUD," 20 July 2018 The progestin can also thin your uterine lining, which means using NuvaRing and similar hormonal birth control methods can lead to a lighter period and less cramping. Korin Miller, SELF, "Do You Actually Need to Keep Your Vaginal Ring in the Fridge?," 3 July 2018 Hormonal IUDs are coated with a synthetic progestin called levonorgestrel. Korin Miller, SELF, "Is There Any Reliable Way to Make Your Period Come Faster?," 11 July 2018 Hormonal IUDs, meanwhile, use progestin, which can stop your periods and the growth of endometrial implants. Korin Miller, Allure, "This Is What Endometriosis Pain Feels Like — and How to Treat It," 6 Mar. 2018 Just like with the minipill, the shot contains only the synthetic female hormone progestin, which prevents ovulation. Rachel Epstein, Marie Claire, "Behold: The Best Birth Control to Fix Your Terrible Period Cramps," 22 Dec. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'progestin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of progestin

1945, in the meaning defined above

History and Etymology for progestin

pro- + gestation + -in entry 1

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Last Updated

4 Jan 2019

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Time Traveler for progestin

The first known use of progestin was in 1945

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pro·​ges·​tin | \ prō-ˈjest-ən \

Medical Definition of progestin

: progesterone especially : a synthetic progesterone (as levonorgestrel)

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tremendous in size, volume, or degree

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