hematoma

noun

he·​ma·​to·​ma ˌhē-mə-ˈtō-mə 

plural hematomas also hematomata ˌhē-mə-ˈtō-mə-tə 

: 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

During the surgery, doctors removed 40% of her skull to treat a hematoma, or a brain bleed, caused by a burst blood vessel in her brain. —Cara Lynn Shultz, PEOPLE, 9 June 2026

She was rushed to a hospital, diagnosed with a subdural hematoma and a craniotomy was immediately performed, saving her life. —Daniel Fienberg, HollywoodReporter, 9 June 2026

She was diagnosed with an intracranial hematoma (a collection of blood underneath the skull) from a burst blood vessel and subsequently underwent a craniectomy that removed a portion of her skull to treat the condition. —Emlyn Travis, Entertainment Weekly, 9 June 2026

Given the risk of swelling and hematoma formation, the authors wisely concluded that early intervention is warranted. —Scott Lafee, San Diego Union-Tribune, 21 Apr. 2026

Word History

Etymology

New Latin

First Known Use

circa 1849, in the meaning defined above

Rhymes for hematoma

• ambystoma
• atheroma
• carcinoma
• coloboma
• granuloma
• haematoma
• hamartoma
• hemangioma
• hepatoma
• hybridoma
• melanoma
• myeloma

Medical Definition

hematoma

noun

he·​ma·​to·​ma

variants or chiefly British haematoma

-ˈtō-mə 

plural hematomas also hematomata -mət-ə 

: a mass of usually clotted blood that forms in a tissue, organ, or body space as a result of a broken blood vessel