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Definitions of: ARACHNOID
- (a.) Resembling a spider's web; cobweblike.
- (a.) Pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater.
- (a.) Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.
- (n.) The arachnoid membrane.
- (n.) One of the Arachnoidea.