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 taken to the hospital for medical treatment and is currently in the pediatric intensive care unit with bilateral skull fractures and subdural and subarachnoid hemorrhages, according to the arrest citation. —Caroline Neal, Louisville Courier Journal, 4 Sep. 2025

Doctors diagnosed the teen with a depressed skull fracture and a subdural hematoma. —Milena Malaver, Miami Herald, 26 Aug. 2025

Both 28-year-old boxers underwent operations for subdural haematoma, or bleeding inside the skull, the reports said. —Reuters, NBC news, 11 Aug. 2025

Urakawa underwent a craniotomy to also treat a subdural hematoma but died Saturday. —Anthony Stitt, Forbes.com, 10 Aug. 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