hematoma

noun

he·​ma·​to·​ma ˌhē-mə-ˈtō-mə How to pronounce hematoma (audio)
plural hematomas also hematomata ˌhē-mə-ˈtō-mə-tə How to pronounce hematoma (audio)
: a mass of usually clotted blood that forms in a tissue, organ, or body space as a result of a broken blood vessel

Examples of hematoma in a Sentence

Recent Examples on the Web
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The assault left the woman with numerous injuries, including multiple bruises, hematomas and abrasions to her face, head, arms and hand, CWB Chicago reported. Julia Bonavita, FOXNews.com, 8 Dec. 2025 At the time, she was diagnosed with a cranial hematoma and underwent an emergency craniectomy. Julia Moore, PEOPLE, 8 Dec. 2025 What To Know Frehley, born Paul Daniel Frehley, suffered a fracture to the back of his skull, a subdural hematoma—blood collected between the brain and its protective outer layer—and a stroke, according to TMZ. Megan Cartwright, MSNBC Newsweek, 11 Nov. 2025 The medical examiner’s report noted that doctors attempted a hemicraniectomy on Frehlehy, a procedure aimed at potentially alleviating the hematoma. Jon Blistein, Rolling Stone, 10 Nov. 2025 See All Example Sentences for hematoma

Word History

Etymology

New Latin

First Known Use

circa 1849, in the meaning defined above

Time Traveler
The first known use of hematoma was circa 1849

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Cite this Entry

“Hematoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hematoma. Accessed 13 Dec. 2025.

Medical Definition

hematoma

noun
he·​ma·​to·​ma
variants or chiefly British haematoma
plural hematomas also hematomata -mət-ə How to pronounce hematoma (audio)
: a mass of usually clotted blood that forms in a tissue, organ, or body space as a result of a broken blood vessel

More from Merriam-Webster on hematoma

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