progestin
noun
pro·ges·tin prō-ˈje-stən 
: progestogen
especially : a synthetic progesterone (such as levonorgestrel)
Example Sentences
Recent Examples on the Web One candidate being developed by researchers at the National Institutes of Health and the nonprofit Population Council is a hormonal gel that contains a synthetic progestin called Nestorone, which blocks natural testosterone and reduces sperm count. 
Wired, 24 July 2022 The drug, with the brand name of Opill, is a progestin-only birth control pill to be taken daily. Annalisa Merelli, Quartz, 11 July 2022 This risk is abolished by administering estrogen with a progestin, such as medroxyprogesterone. Dr. Keith Roach, oregonlive, 4 Apr. 2022 HRA Pharma, a French drug company, has filed an application to make Opill, a progestin-only daily pill, available for purchase without a prescription in the U.S. Hanna Lustig, Glamour, 12 July 2022 Unlike combination pills, progestin-only pills don’t stop ovulation, but make the uterus inhospitable for pregnancy. Annalisa Merelli, Quartz, 11 July 2022 In the case of uterine cancer, giving estrogen alone (without a progestin) absolutely increases the risk of developing abnormalities. Dr. Keith Roach, oregonlive, 4 Apr. 2022 As with hormonal IUDs, the progestin in this contraceptive works to thicken your cervical mucus, cut back on your uterine lining, and possibly suppress ovulation. Sara Lindberg, SELF, 11 Mar. 2022 People who take the progestin-only pill may also notice their periods are lighter or non-existent (but breakthrough bleeding can still occur). Sara Lindberg, SELF, 11 Mar. 2022 See More
Wired, 24 July 2022 The drug, with the brand name of Opill, is a progestin-only birth control pill to be taken daily. Annalisa Merelli, Quartz, 11 July 2022 This risk is abolished by administering estrogen with a progestin, such as medroxyprogesterone. Dr. Keith Roach, oregonlive, 4 Apr. 2022 HRA Pharma, a French drug company, has filed an application to make Opill, a progestin-only daily pill, available for purchase without a prescription in the U.S. Hanna Lustig, Glamour, 12 July 2022 Unlike combination pills, progestin-only pills don’t stop ovulation, but make the uterus inhospitable for pregnancy. Annalisa Merelli, Quartz, 11 July 2022 In the case of uterine cancer, giving estrogen alone (without a progestin) absolutely increases the risk of developing abnormalities. Dr. Keith Roach, oregonlive, 4 Apr. 2022 As with hormonal IUDs, the progestin in this contraceptive works to thicken your cervical mucus, cut back on your uterine lining, and possibly suppress ovulation. Sara Lindberg, SELF, 11 Mar. 2022 People who take the progestin-only pill may also notice their periods are lighter or non-existent (but breakthrough bleeding can still occur). Sara Lindberg, SELF, 11 Mar. 2022 See More Word History
Etymology
progest(ational) + -in entry 1, originally as a name for progesterone
Note: The name was introduced by the American gynecologist and biochemist Willard M. Allen (1904-93) in "Physiology of the Corpus Luteum V. The Preparation and Some Chemical Properties of Progestin, a Hormone of the Corpus Luteum which Produces Progestational Proliferation," Amerian Journal of Physiology, vol. 92, issue 1 (February, 1930), pp. 174-88.
First Known Use
1945, in the meaning defined above
Medical Definition
progestin
noun
pro·ges·tin prō-ˈjest-ən
: progesterone
especially : a synthetic progesterone (as levonorgestrel)