Relating to or resembling spiders.
Relating to or resembling spider webs; covered with or composed of soft loose hairs or fibers.
Relating to the arachnoid mater.
An arachnid.
A round network of fractures in the crust of Venus.
The middle layer of the meninges; a membrane that protects the brain and spinal cord below the dura mater and above the subarachnoid space and the pia mater.