progestin

noun

pro·​ges·​tin prō-ˈje-stən How to pronounce progestin (audio)
: progestogen
especially : a synthetic progesterone (such as levonorgestrel)

Examples of progestin in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Birth control pills: Daily oral contraceptives contain a combination of estrogen and progestin or just progestin. Lindsay Curtis, Verywell Health, 14 Jan. 2025 Postmenopausal women may find relief through HRT with estrogen or a combination of estrogen and progestin, which can help ease menopause symptoms that contribute to low libido. Emily Cegielski, Flow Space, 18 Mar. 2025 By releasing a small amount of progestin daily, hormonal IUDs thicken cervical mucus, forming a barrier that blocks sperm from reaching the egg. Lindsay Curtis, Verywell Health, 15 Jan. 2025 Many forms of hormonal birth control, including the oral contraceptive pill, have a combination of hormones: estrogen and progestin (a form of progesterone). Mara Santilli, Flow Space, 26 Feb. 2025 See All Example Sentences for progestin

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

Time Traveler
The first known use of progestin was in 1945

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Cite this Entry

“Progestin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/progestin. Accessed 8 Apr. 2025.

Medical Definition

progestin

noun
pro·​ges·​tin prō-ˈjest-ən How to pronounce progestin (audio)
: progesterone
especially : a synthetic progesterone (as levonorgestrel)

More from Merriam-Webster on progestin

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