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) \

Definition of hematoma

: 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 Mariyah was born via an emergency C-section when a massive hematoma in her mother ruptured the placenta, restricting blood flow and oxygen to the infant’s brain. John Johnston, The Enquirer, 2 Dec. 2021 Novotny had developed a hematoma — a collection of blood inside one of his abdominal muscles — that needed immediate attention. Washington Post, 6 Oct. 2021 The hematoma had swollen to the size of a volleyball, which was difficult for all to see. Annie Gowen, Anchorage Daily News, 15 Oct. 2021 The official diagnosis was subarachnoid hemorrhage and subdural hematoma — bleeding and the pooling of blood on the surface of the brain. John Branch, New York Times, 7 Oct. 2021 According to a malpractice lawsuit Williams settled in 2019 with Helliwell, her 2016 surgery left her with a painful hematoma that required surgical repair, an off-center belly button and a flap of skin hanging off her abdomen. Jim Axelrod, CBS News, 21 Sep. 2021 The woman was treated for a skull fracture, bleeding from the ear and a contusion with a hematoma on her forehead, prosecutors said. Brian L. Cox, chicagotribune.com, 2 July 2021 February 2011 - Undergoes emergency treatment for a hematoma related to a pulmonary embolism, a blood clot in her lungs. CNN, 25 Aug. 2021 Doctors found a subdural hematoma, a serious injury that occurred when his head struck the wall the day before. Gina Barton, Milwaukee Journal Sentinel, 4 Feb. 2014

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

circa 1849, in the meaning defined above

History and Etymology for hematoma

New Latin

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Time Traveler for hematoma

Time Traveler

The first known use of hematoma was circa 1849

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Last Updated

3 Jan 2022

Cite this Entry

“Hematoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hematoma. Accessed 20 Jan. 2022.

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More Definitions for hematoma


variants: or chiefly British haematoma \ -​ˈtō-​mə How to pronounce hematoma (audio) \
plural hematomas also hematomata\ -​mət-​ə How to pronounce hematoma (audio) \

Medical Definition of hematoma

: 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

Britannica English: Translation of hematoma for Arabic Speakers

Britannica.com: Encyclopedia article about hematoma


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