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

The Puerto Rican boxer had brain surgery but never fully recovered from his injuries, identified as a large subdural hematoma, and was in a persistent vegetative state. — Matt Moret, New York Times, 14 Aug. 2026

Doctors diagnosed the man with a spontaneous epidural hematoma, which is a blood clot that forms in the head or spine without any preceding trauma. — Toria Sheffield, PEOPLE, 8 Aug. 2026

The attack on Andric caused facial burns, a skull hematoma and a mild concussion. — The Editorial Board, Chicago Tribune, 13 July 2026

Andric sustained significant injuries from the attack, including facial burns, a skull hematoma and a concussion. — Michael McCann, Sportico.com, 2 July 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