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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After he was retrieved by first responders and transported to a hospital, a hospital spokesperson confirmed to Jornal Folha do Litoral News that Thomaz was lucid, with signs of dehydration and hematomas on his legs. Sam Gillette, PEOPLE, 6 Jan. 2026 In December 2023, Hough announced that Erbert underwent an emergency craniectomy after being diagnosed with an intracranial hematoma (a collection of blood in her skull). Shania Russell, Entertainment Weekly, 5 Jan. 2026 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 According to the report, a CT scan of Frehley’s head revealed multiple contusions, bone fractures to the back of his skull, hemorrhages, and a subdural hematoma (the type of bleeding that occurs in a person’s brain after a head injury). 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 10 Jan. 2026.

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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