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

Turnipseed returned to the hospital days after he was initially released and was diagnosed with a traumatic subdural hematoma, which required surgery. —Bryant Reed, CBS News, 11 June 2026

She was rushed to a hospital, diagnosed with a subdural hematoma and a craniotomy was immediately performed, saving her life. —Daniel Fienberg, HollywoodReporter, 9 June 2026

The first, subdural, occurs when blood collects under one of the layers of tissue inside the skull that protect the brain. —Duaa Eldeib, ProPublica, 18 May 2026

The actress sustained a subdural hematoma as the result of a fall earlier that day in her San Antonio, Texas, home. —Angela Andaloro, PEOPLE, 4 May 2026

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