subarachnoid
adjective
sub·arach·noid
ˌsəb-ə-ˈrak-ˌnȯid 
variants
or less commonly subarachnoidal
: of, relating to, occurring, or situated under the arachnoid membrane
subarachnoid hemorrhage
Examples of subarachnoid in a Sentence
Recent Examples on the Web
This is most commonly caused by untreated high blood pressure, and the blood may spill into either the inside of the brain or the space between the brain and its subarachnoid covering.
—
Matt Hrodey, Discover Magazine, 22 May 2023
Blood thinners, bleeding disorders, or head injuries may cause subarachnoid bleeding.
—Alyssa Hui, Health, 12 Apr. 2023
Moderate to severe TBIs can also include contusions, or bruising of the brain tissue; or hemorrhages—both intracerebral hemorrhages and subarachnoid hemorrhages—which is when active bleeding is present, according to the American Association of Neurological Surgeons (AANS).
—Ashley Abramson, Health.com, 14 Feb. 2022
The man’s comedic compulsion was attributed to a stroke, which had damaged part of his left caudate nucleus, although an earlier lesion to the right frontal cortex, caused by a subarachnoid hemorrhage, may have contributed to the pathological punning.
—Neuroskeptic, Discover Magazine, 28 Feb. 2016
Edwards had suffered a subarachnoid hemorrhage, or a burst vein in her brain.
—Pam Kragen, San Diego Union-Tribune, 13 Nov. 2022
The A-list actor recalls the journey to rebuild her life after suffering a subarachnoid hemorrhage in 2001.
—The California Independent Booksellers Alliance, Los Angeles Times, 7 Apr. 2021
Clarke experienced her first aneurysm, which caused a stroke and a subarachnoid hemorrhage, soon after wrapping up filming on the first season of Game of Thrones in 2011.
—Anna Lazarus Caplan, PEOPLE.com, 18 July 2022
Edwards had suffered a subarachnoid hemorrhage, which is bleeding from a vein, unlike a stroke or aneurysm, which involves a torn or blocked artery.
—Diane Bell Columnist, San Diego Union-Tribune, 30 Oct. 2021
Matt Hrodey, Discover Magazine, 22 May 2023
Blood thinners, bleeding disorders, or head injuries may cause subarachnoid bleeding.
—Alyssa Hui, Health, 12 Apr. 2023
Moderate to severe TBIs can also include contusions, or bruising of the brain tissue; or hemorrhages—both intracerebral hemorrhages and subarachnoid hemorrhages—which is when active bleeding is present, according to the American Association of Neurological Surgeons (AANS).
—Ashley Abramson, Health.com, 14 Feb. 2022
The man’s comedic compulsion was attributed to a stroke, which had damaged part of his left caudate nucleus, although an earlier lesion to the right frontal cortex, caused by a subarachnoid hemorrhage, may have contributed to the pathological punning.
—Neuroskeptic, Discover Magazine, 28 Feb. 2016
Edwards had suffered a subarachnoid hemorrhage, or a burst vein in her brain.
—Pam Kragen, San Diego Union-Tribune, 13 Nov. 2022
The A-list actor recalls the journey to rebuild her life after suffering a subarachnoid hemorrhage in 2001.
—The California Independent Booksellers Alliance, Los Angeles Times, 7 Apr. 2021
Clarke experienced her first aneurysm, which caused a stroke and a subarachnoid hemorrhage, soon after wrapping up filming on the first season of Game of Thrones in 2011.
—Anna Lazarus Caplan, PEOPLE.com, 18 July 2022
Edwards had suffered a subarachnoid hemorrhage, which is bleeding from a vein, unlike a stroke or aneurysm, which involves a torn or blocked artery.
—Diane Bell Columnist, San Diego Union-Tribune, 30 Oct. 2021
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'subarachnoid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near subarachnoid
Cite this Entry
“Subarachnoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subarachnoid. Accessed 20 Apr. 2024.
Copy CitationMedical Definition
subarachnoid
adjective
sub·arach·noid
ˌsəb-ə-ˈrak-ˌnȯid
variants
also subarachnoidal
1
: situated or occurring under the arachnoid membrane
subarachnoid hemorrhage
2
: of, relating to, or involving the subarachnoid space and the fluid within it
subarachnoid meningitis
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