1. arachnoid - Noun
2. arachnoid - Adjective
Resembling a spider's web; cobweblike.
Pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater.
Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.
The arachnoid membrane.
One of the Arachnoidea.
Source: Webster's dictionaryBetween the arachnoid mater and the pia mater is the subarachnoid space which contains cerebrospinal fluid (CSF). Source: Internet
Reabsorption It had been thought that CSF returns to the vascular system by entering the dural venous sinuses via the arachnoid granulations (or villi). Source: Internet
Rico's military career progresses from recruit to non-commissioned officer and finally to officer against the backdrop of an interstellar war between mankind and an arachnoid species known as " the Bugs ". Source: Internet
The arachnoid and pia are physically connected and thus often considered as a single layer, the pia-arachnoid. Source: Internet
The dural venous sinuses within the dura mater surrounding the brain receive blood from the brain and also are a point of entry of cerebrospinal fluid from arachnoid villi absorption. Source: Internet
The pia mater and arachnoid mater including blood vessels are seen at the top of the image. Source: Internet