fibroid

1 of 2

adjective

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

fibroid

2 of 2

noun

: 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
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Adjective
The policies range from guardrails against online bullying to heart attack response training expansions and new uterine fibroid research funding. Jake Sheridan, Chicago Tribune, 8 Mar. 2026 Last month, Rose Wilkerson got a hysterectomy after years of struggling with fibroid tumors on her uterus. Sara Dinatale, San Francisco Chronicle, 20 Jan. 2026
Noun
Black women are also two to three times more likely to have frequent fibroids or experience complications, per Michigan Medicine. Edward Segarra, USA Today, 24 Mar. 2026 In addition to their use as a contraceptive, the pills are prescribed for a variety of health issues, including preventing anemia from heavy periods and treating uterine fibroids. Amanda Seitz, Miami Herald, 17 Mar. 2026 See All Example Sentences for fibroid

Word History

First Known Use

Adjective

1852, in the meaning defined above

Noun

circa 1860, in the meaning defined above

Time Traveler
The first known use of fibroid was in 1852

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Cite this Entry

“Fibroid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibroid. Accessed 1 Apr. 2026.

Medical Definition

fibroid

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

fibroid

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