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“arachnoid”
arachnoid (adjective) (not comparable)
1. Covered with, or formed by long, delicate, entangled hairs or fibers: The fine layer of dust covering the old furniture in the attic looked like an arachnoid web of a spider.
2. Referring to the delicate serous membrane, or membranous sac, lining the dura mater, and enveloping the brain and spinal cord: Like a cobweb, a thin arachnoid membrane lies between two other membranes surrounding the brain and the spinal cord.
2. Referring to the delicate serous membrane, or membranous sac, lining the dura mater, and enveloping the brain and spinal cord: Like a cobweb, a thin arachnoid membrane lies between two other membranes surrounding the brain and the spinal cord.
This entry is located in the following units:
arachno-, arachn- +
(page 2)
-oid, -oidal, -oidism, -odic
(page 3)
Word Entries containing the term:
“arachnoid”
One of the tissue layers covering the brain and the spinal cord: Arachnoiditis is the name applied to inflammation of the arachnoid membrane.
This entry is located in the following unit:
arachno-, arachn- +
(page 2)
arachnoid villi (pl) (noun)
In anatomy, numerous microscopic projections of the arachnoid membrane into some venous sinuses: Arachnoid villi refers to the minute hairlike projections, or tiny finger-like or vascular projections, on the mucous membranes.