What does "arachnoid" mean?
Arachnoid: (Anat.) Pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater.
Additional senses
- 2.(Bot.) Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.
- 3.(Anat.) The arachnoid membrane.
- 4.(Zoöl.) One of the Arachnoidea.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00