nounpl. -·mas or -·mata
a tumorlike collection of blood, usually clotted, located outside a blood vessel
Origin of hematomaModL: see hemat(o)- and -oma
nounpl. he·ma·to·mas, or he·ma·to·ma·ta
A localized swelling filled with blood resulting from a break in a blood vessel.
(plural hematomas or haematomata)
- A swelling of blood, usually clotted, which forms as a result of a broken blood vessel.
From New Latin