
In the central nervous system, the subarachnoid cavity (subarachnoid space) is the anatomic space between the arachnoid membrane and pia mater. It is occupied by spongy tissue consisting of trabeculae (delicate connective tissue filaments that extend from the arachnoid mater and blend into the pia mater) and intercommunicating channels in which th...
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http://en.wikipedia.org/wiki/Subarachnoid_space

(from the article `nervous system, human`) ...From there the fluid passes through the cerebral aqueduct in the midbrain and into the fourth ventricle in the hindbrain. Openings in the fourth ...
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http://www.britannica.com/eb/a-z/s/177

The space between the arachnoidea and pia mater, traversed by delicate fibrous trabeculae and filled with cerebrospinal fluid. Since the pia mater immediately adheres to the surface of the brain and spinal cord, the space is greatly widened wherever the brain surface exhibits a deep depression (for example, between the cerebellum and medulla); such...
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http://www.encyclo.co.uk/local/20973

the space between the arachnoid and the pia mater, containing cerebrospinal fluid.
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http://www.encyclo.co.uk/local/21001

Cerebrospinal fluid filled space between the arachnoidea and the pia mater of the central nervous system.
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http://www.encyclo.co.uk/local/21447

The space between the arachnoid and the pia mater.
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http://www.gadsbywicks.co.uk/uploaded/3822.pdf

Type: Term Definitions: 1. the space between the arachnoidea and pia mater, traversed by delicate fibrous trabeculae and filled with cerebrospinal fluid. Because the pia mater immediately adheres to the surface of the brain and spinal cord, the space is greatly widened wherever the brain surface exhibits a deep depression (between the cerebellum an...
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http://www.medilexicon.com/medicaldictionary.php?t=83179

(sub;ua-rak;noid) The space within the meninges between the arachnoid mater and pia mater, where cerebrospinal fluid flows.
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http://www.mhhe.com/biosci/abio/glossary.mhtml

[
n] - a space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
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http://www.webdictionary.co.uk/definition.php?query=subarachnoid%20space

Space between the arachnoid membrane of the brain and another membrane (piamater) which is in direct contact with the central nervous system.
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https://www.encyclo.co.uk/local/20737
noun a space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid
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https://www.encyclo.co.uk/local/20974
No exact match found.