hematoma

[hee-ma-toh-muh, hem-uh-]

noun, plural he·ma·to·mas, he·ma·to·ma·ta

[hee-ma-toh-muh-tuh, hem-uh-] /ˌhi mæˈtoʊ mə tə, ˌhɛm ə-/. Pathology.

a circumscribed collection of blood, usually clotted, in a tissue or organ, caused by a break in a blood vessel.

Origin of hematoma

First recorded in 1840–50; hemat- + -oma

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

If bleeding around the brain is involved, the hematoma can grow quickly.
Brain Bleed: Why Michael Schumacher’s Helmet Wasn’t Enough
Dr. Anand Veeravagu, MD, Tej Azad
January 3, 2014
The result is a rapidly enlarging blood clot, called a hematoma.
Brain Bleed: Why Michael Schumacher’s Helmet Wasn’t Enough
Dr. Anand Veeravagu, MD, Tej Azad
January 3, 2014

A hematoma is a blood tumor or a circumscribed hemorrhage in the tissues.
Surgery, with Special Reference to Podiatry
Maximilian Stern
Hematoma, or blood tumors, may be found embedded in this membrane.
Special Report on Diseases of the Horse
United States Department of Agriculture

1826, from hemato- + -oma.

hematoma in Medicine

(hē′mə-tō′mə)

n. pl. he•ma•to•mas

A localized swelling filled with blood resulting from a break in a blood vessel.

hematoma in Science

[hē′mə-tō′mə]

Plural hematomas hematomata (hē′mə-tō′mə-tə)

The abnormal buildup of blood in an organ or other tissue of the body, caused by a break in a blood vessel.