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

Lussier had suffered an acute subdural hematoma and likely died soon after the trauma. — Stephen Swanson, CBS News, 22 Oct. 2026

One possible injury is a subdural hematoma, which is bleeding between the brain and its outer protective covering putting pressure on the brain. — Katia Hetter, CNN Money, 16 Oct. 2026

According to the Cleveland Clinic, an anterior mediastinum hematoma is the collection of clotted blood pooling in the front part of the chest cavity. — Natasha Dye, PEOPLE, 12 Oct. 2026

Jackson was taken into surgery, where a hematoma was evacuated and a fasciotomy procedure was performed to relieve pressure and restore blood flow, a complaint says. — Chris Ramirez, jsonline.com, 4 Sep. 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