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

In surgery, certain risks are universal—infection, hematoma and seroma (collections of blood or fluid under the skin), swelling, bruising, pain, and poor healing, to name a few. —Jolene Edgar, Allure, 10 Apr. 2025

Medical staff determined the infant suffered bilateral subdural hematomas, or a pooling of blood between the skull and brain matter, according to court documents. —Kate Linderman, Kansas City Star, 7 Mar. 2025

As a result of the fall, the boy fractured his leg and suffered a severe hematoma, Fuerte told KTVU. —Kc Baker, People.com, 3 Mar. 2025

The liver had subscapular hematoma, which a 2020 Science Direct article says is spontaneous bleeding between the connective tissue surrounding the liver and the functional tissue of the liver. —David J. Neal, Miami Herald, 7 Feb. 2025

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