from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Situated or occurring beneath the arachnoid membrane, or between the arachnoid and the pia mater: subarachnoid space; subarachnoid anesthesia.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Located or occurring below the arachnoid mater, often specifically between the arachnoid membrane and the pia mater

from the GNU version of the Collaborative International Dictionary of English

  • adj. Situated under the arachnoid membrane.

from The Century Dictionary and Cyclopedia

  • Situated beneath the arachnoid—that is, between that membrane and the pia mater: as, the subarachnoid space.
  • Subdural.


sub- +‎ arachnoid (Wiktionary)


  • Sharon Stone, as you know, Larry, had a very difficult situation in September of 2001, where she had a splitting headache and something called a subarachnoid hemorrhage, and she almost died.

    CNN Transcript Nov 25, 2002

  • Brain aneurysms are often discovered when they rupture, causing bleeding into the brain or the space closely surrounding the brain called the subarachnoid space, causing a subarachnoid hemorrhage. - Articles related to Seychelles’ consul in Tanzania holds talks on air link

  • Michaels, 47, suffered a type of stroke called a subarachnoid haemorrhage, which causes bleeding in the fluid-filled spaces around the base of the brain. | Top Stories

  • Michaels, 47, is conscious and in critical but stable condition at the unidentified hospital after suffering a type of stroke called a subarachnoid hemorrhage, which causes bleeding in the fluid-filled spaces around the base of the brain. Latest News

  • Poison frontman suffers from bleeding in his caused by a type of stroke called a subarachnoid hemorrhage.

    Celebrity NewsToob» Celebrity NewsToob – Celebrity Gossip, Hot Pics, Bikinis, and More!

  • When a brain aneurysm ruptures, the result is called a subarachnoid hemorrhage.

    Yahoo! Buzz US: Top Stories

  • Neurology, found that these smokers were more than six times more likely to suffer a particular type of stroke, called a subarachnoid hemorrhage, than were those who did not smoke and did not have a family history of stroke or brain aneurysm.

    Medlogs - Recent stories

  • Eventually, like an over-inflated balloon, the aneurysm can burst (a type of stroke known as a subarachnoid hemorrhage).

    HOI-19 - Local News

  • The type of stroke, called subarachnoid hemorrhage, is one of the bleeding types of stroke and is deadly in about 35 to 40 percent of people. - latest science and technology news stories

  • CSF flows through a series of openings or foramens in the brain and out into the subarachnoid space where it is reabsorbed by the venous system.


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