luteinizing hormone


Definition of luteinizing hormone

: a hormone secreted by the anterior lobe of the pituitary gland that in the female stimulates ovulation and the development of corpora lutea and in the male the development of interstitial tissue in the testis

Examples of luteinizing hormone in a Sentence

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At this point, your estrogen levels top off and there’s a rise in luteinizing hormone (LH), which prepares the follicle to release the egg inside of it for potential fertilization. Korin Miller, SELF, "How to Stop Your Period With Birth Control," 16 Jan. 2019 In a small clinical study conducted in Italy in the 1990s, researchers compared BBT and other natural methods (such as tracking ferning and luteinizing hormone in urine) to pelvic ultrasonography data—a surefire way to pinpoint ovulation. Beth Mole, Ars Technica, "“Natural” birth-control app dogged by unwanted pregnancies gets FDA approval," 15 Aug. 2018 That often includes injectable medication containing a follicle-stimulating hormone (FSH), a luteinizing hormone (LH), or a combination of both to stimulate more than one egg to develop at a time, the organization says. Korin Miller, SELF, "Comedian Tig Notaro Worries That IVF After Breast Cancer Was a Risky Choice," 3 Aug. 2018 Around the middle of your cycle, your estrogen levels peak and cause a big rise in luteinizing hormone (LH), which causes the follicle to burst and release an egg from your ovary in a process known as ovulation. Korin Miller, SELF, "Is There Any Reliable Way to Make Your Period Come Faster?," 11 July 2018 When your body builds up enough estrogen and increases the amount of luteinizing hormone in your body, an egg is released and is carried into the fallopian tubes. Tehrene Firman, Woman's Day, "When Do Women Ovulate? Here's Everything You Need to Know," 13 June 2018 Hypothalamic hypogonadism: This condition happens when your ovaries produce little or no gonadotropin-releasing hormone (GnRH), follicle stimulating hormone (FSH), and luteinizing hormone (LH), according to the U.S. National Library of Medicine. Korin Miller, SELF, "How Long Does a Period Last, Normally?," 17 May 2018 Giacobini’s group had previously found that AMH could act on a set of neurons in the brain, which then triggers the release of luteinizing hormone (LH) by part of the pituitary gland. Jennifer Couzin-frankel, Science | AAAS, "Scientists may be closer to understanding a mysterious but common cause of female infertility," 14 May 2018 During this time, your estrogen levels crest, which signals your pituitary gland to release a surge of luteinizing hormone (LH). Zahra Barnes, SELF, "This Is Exactly What Happens During Your Menstrual Cycle," 23 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'luteinizing hormone.' 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 luteinizing hormone

1931, in the meaning defined above

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7 Feb 2019

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The first known use of luteinizing hormone was in 1931

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luteinizing hormone


Medical Definition of luteinizing hormone

: a glycoprotein hormone that is secreted by the adenohypophysis and that in the female stimulates ovulation and the development of the corpora lutea and together with follicle-stimulating hormone the secretion of estrogen from developing ovarian follicles and in the male the development of interstitial tissue in the testis and the secretion of testosterone abbreviation LH

called also interstitial-cell stimulating hormone, lutropin

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to deny responsibility for

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