Dictionary and Thesaurus

Definition 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.

Synonyms of Arachnoid

• Arachnoid Membrane
• Arachnid
• Arachnidian
• Spidery
• Spiderlike
• Spiderly

Antonyms of Arachnoid

Homophones of Arachnoid