1 of 2


fi·​broid ˈfī-brȯid How to pronounce fibroid (audio)
: resembling, forming, or consisting of fibrous tissue
a fibroid tumor


2 of 2


: a benign tumor that consists of fibrous and muscular tissue and occurs especially in the uterine wall

Examples of fibroid in a Sentence

Recent Examples on the Web
Oh, and this was after three years of infertility, surgery to remove my fibroid tumors, etc. Carolyn Hax, Washington Post, 13 Feb. 2023 Heavy periods could be caused by a bigger issue—like a clotting disorder or a uterine polyp or fibroid—that could also cause pain, infertility, and other problems. Amanda MacMillan, Health, 11 Feb. 2023 Hormonal contraceptives are another option to treat uterine fibroid symptoms. Amanda Gardner, Health, 24 Jan. 2023 The scan had revealed her mass to be a large fibroid tumor, a benign growth arising from the muscle tissue that makes up the wall of the uterus. H Lee Kagan, Discover Magazine, 28 Jan. 2011 Gaines was diagnosed in early October after experiencing abdominal pains doctors had initially told her were caused by fibroid tumors, her son, Roger Gaines, told The Washington Post. Ovetta Wiggins, Washington Post, 15 Nov. 2022 The most common causes of hysterectomies include abnormal bleeding, fibroid tumors and pelvic inflammatory disease. Frederick N. Rasmussen, Baltimore Sun, 9 Nov. 2022 Bailey had her fibroids removed through a less-invasive procedure called uterine fibroid embolization. Devi Shastri, Journal Sentinel, 6 Sep. 2022 For decades, doctors defaulted to hysterectomy to treat fibroid symptoms. al, 20 June 2022
Types of fibroids Uterine fibroids are classified by their location. Macaela MacKenzie, Glamour, 5 July 2023 To name one example, leiomyomas (more commonly known as fibroids) are benign tumors on the walls of the uterus. Laura Kolbe, The New York Review of Books, 18 Jan. 2024 Many Black women have consulted with attorneys to sue Revlon, Just for Me and other cosmetics companies, alleging their hair straighteners cause cancer, fibroids and other health problems. Claretta Bellamy, NBC News, 18 Oct. 2023 Little had been misdiagnosed a few months earlier, initially with a noncancerous fibroid tumor, common in young Black women and something that runs in her family. Essence, 1 Nov. 2023 As more research continues to reveal potential dangers, hundreds of Black people have filed lawsuits against big-name beauty and cosmetic retailers like L’Oreal and Revlon, blaming their chemical hair straighteners as causes of uterine cancer, fibroid tumors and infertility. Claretta Bellamy, NBC News, 18 Oct. 2023 Since estrogen fuels fibroid growth, drugs targeting estrogen production can treat fibroids. Macaela MacKenzie, Glamour, 17 July 2023 Some people with uterine fibroids have pelvic pain and spotting between periods. Kristine Thomason, Health, 17 Aug. 2023 She’s since spoken about her experience dealing with fibroids in the 1980s. Macaela MacKenzie, Glamour, 5 July 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fibroid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use


1852, in the meaning defined above


circa 1860, in the meaning defined above

Time Traveler
The first known use of fibroid was in 1852

Dictionary Entries Near fibroid

Cite this Entry

“Fibroid.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2024.

Medical Definition


1 of 2 adjective
fi·​broid ˈfīb-rȯid How to pronounce fibroid (audio) ˈfib- How to pronounce fibroid (audio)
: resembling, forming, or consisting of fibrous tissue


2 of 2 noun
: a benign tumor especially of the uterine wall that consists of fibrous and muscular tissue

More from Merriam-Webster on fibroid

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!