subdural

adjective

sub·​dur·​al ˌsəb-ˈdu̇r-əl 

-ˈdyu̇r-;

ˈsəb-ˌd(y)u̇r-

: situated or occurring beneath the dura mater or between the dura mater and the arachnoid membrane

subdural space

subdural hematomas

Examples of subdural in a Sentence

Recent Examples on the Web

The child was later found to have suffered multiple injuries, including rib fractures, fractures to both arms, and a subdural hematoma to his brain, among other acute injuries, according to doctors. —Muri Assunção, New York Daily News, 8 Jan. 2026

What To Know Frehley, born Paul Daniel Frehley, suffered a fracture to the back of his skull, a subdural hematoma—blood collected between the brain and its protective outer layer—and a stroke, according to TMZ. —Megan Cartwright, MSNBC Newsweek, 11 Nov. 2025

According to the report, a CT scan of Frehley’s head revealed multiple contusions, bone fractures to the back of his skull, hemorrhages, and a subdural hematoma (the type of bleeding that occurs in a person’s brain after a head injury). —Jon Blistein, Rolling Stone, 10 Nov. 2025

The victim was found to have bruises on the left side of his face, a subdural hematoma, retinal hemorrhage in both eyes and a subarchnoid hemorrhage, Siddiq said. —City News Service, Oc Register, 8 Oct. 2025

Word History

Etymology

sub- + dura (mater)

First Known Use

1870, in the meaning defined above

Medical Definition

subdural

adjective

sub·​du·​ral ˌsəb-ˈd(y)u̇r-əl 

: situated, occurring, or performed under the dura mater or between the dura mater and the arachnoid

subdural empyema

subdurally

-ē 

adverb