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Arachnoid
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noun
Arachnoid
n.
1.
(Anat.) The arachnoid membrane.
2.
(Zool.) One of the Arachnoidea.
adjective
Arachnoid
adj.
1.
Resembling a spider's web; cobweblike.
2.
(Anat.) Pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater.
3.
(Bot.) Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.
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Etymology of 'Arachnoid'
Collaborative International Dictionary of English 0.48
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"Arachnoid" Quotes from Famous Books
...
Brain. The brain and spinal cord are protected by three important membranes, known as the meninges,—the dura mater, the
arachnoid
, and
...
— A Practical Physiology • Albert F. Blaisdell
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