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subarachnoid

American  
[suhb-uh-rak-noid] / ˌsʌb əˈræk nɔɪd /

adjective

Anatomy.
  1. of, relating to, or situated below the arachnoid membrane.


Etymology

Origin of subarachnoid

First recorded in 1830–40; sub- + arachnoid

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One scenario described the symptoms of a stroke causing bleeding on the brain called a subarachnoid haemorrhage.

From BBC • Apr. 18, 2026

Doctors found that he had suffered a subarachnoid hemorrhage resulting from a ruptured brain aneurysm.

From Slate • Dec. 8, 2025

"This work could also help us identify additional risk factors for subarachnoid hemorrhage, potentially leading to new therapies to manage aneurysms."

From Science Daily • Jun. 5, 2024

Shortly after finishing the first season of "Game of Thrones" in 2011, Clarke experienced a subarachnoid hemorrhage, a bleed in the space between the brain and surrounding membrane.

From Salon • Jul. 18, 2022

Here is the "island of Reil," here the "pons Varolii"; here is the "arbor vitæ"; and here is the "subarachnoid space"; and here that wonderful contrivance of the great Designer that regulates the arterial supplies.

From My New Curate by Sheehan, Patrick Augustine

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